Merge pull request #3054 from proddy/core3

add back version check

.github/workflows/dev_release.yml

@@ -47,7 +47,7 @@ jobs:
 
       - name: Build webUI
         run: |
-          platformio run -e build_webUI
+          platformio run -e build-webUI
 
       - name: Build modbus
         run: |
@@ -77,3 +77,23 @@ jobs:
           files: |
             CHANGELOG_LATEST.md
             ./build/firmware/*.*
+
+      - name: Update version in Cloudflare KV store
+        if: github.repository == 'emsesp/EMS-ESP32'
+        env:
+          CF_ACCOUNT_ID: ${{ secrets.CF_ACCOUNT_ID }}
+          CF_NAMESPACE_ID: ${{ secrets.CF_NAMESPACE_ID }}
+          CF_API_TOKEN: ${{ secrets.CF_API_TOKEN }}
+          VERSION: ${{ steps.build_info.outputs.VERSION }}
+        run: |
+          JSON_DATA=$(jq -n \
+            --arg version "$VERSION" \
+            --arg date "$(date -u +%Y-%m-%dT%H:%M:%SZ)" \
+            '{version: $version, date: $date}')
+          echo "JSON_DATA: $JSON_DATA"
+          curl -sS --fail-with-body \
+            -X PUT "https://api.cloudflare.com/client/v4/accounts/${CF_ACCOUNT_ID}/storage/kv/namespaces/${CF_NAMESPACE_ID}/values/dev" \
+            -H "Authorization: Bearer ${CF_API_TOKEN}" \
+            -H "Content-Type: application/json" \
+            -d "$JSON_DATA"
+          echo

.github/workflows/stable_release.yml

@@ -27,10 +27,17 @@ jobs:
 
       - name: Checkout repository
         uses: actions/checkout@v6
-  
+
       - name: Enable Corepack
         run: corepack enable pnpm
 
+
+      - name: Get the EMS-ESP version
+        id: build_info
+        run: |
+          version=`grep -E '^#define EMSESP_APP_VERSION' ./src/emsesp_version.h | awk -F'"' '{print $2}'`
+          echo "VERSION=$version" >> $GITHUB_OUTPUT
+
       - name: Install PlatformIO
         run: |
           python -m pip install --upgrade pip
@@ -39,7 +46,7 @@ jobs:
 
       - name: Build webUI
         run: |
-          platformio run -e build_webUI
+          platformio run -e build-webUI
 
       - name: Build modbus
         run: |
@@ -61,3 +68,23 @@ jobs:
           files: |
             CHANGELOG.md
             ./build/firmware/*.*
+
+      - name: Update version in Cloudflare KV store
+        if: github.repository == 'emsesp/EMS-ESP32'
+        env:
+          CF_ACCOUNT_ID: ${{ secrets.CF_ACCOUNT_ID }}
+          CF_NAMESPACE_ID: ${{ secrets.CF_NAMESPACE_ID }}
+          CF_API_TOKEN: ${{ secrets.CF_API_TOKEN }}
+          VERSION: ${{ steps.build_info.outputs.VERSION }}
+        run: |
+          JSON_DATA=$(jq -n \
+            --arg version "$VERSION" \
+            --arg date "$(date -u +%Y-%m-%dT%H:%M:%SZ)" \
+            '{version: $version, date: $date}')
+          echo "JSON_DATA: $JSON_DATA"
+          curl -sS --fail-with-body \
+            -X PUT "https://api.cloudflare.com/client/v4/accounts/${CF_ACCOUNT_ID}/storage/kv/namespaces/${CF_NAMESPACE_ID}/values/stable" \
+            -H "Authorization: Bearer ${CF_API_TOKEN}" \
+            -H "Content-Type: application/json" \
+            -d "$JSON_DATA"
+          echo

.github/workflows/test_release.yml

@@ -47,7 +47,7 @@ jobs:
 
       - name: Build webUI
         run: |
-          platformio run -e build_webUI
+          platformio run -e build-webUI
 
       - name: Build modbus
         run: |

.github/workflows/update_versions.yml

@@ -0,0 +1,40 @@
+name: 'Update versions'
+
+on:
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+jobs:
+  update-version:
+    name: 'Update versions in Cloudflare KV store'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Get and Send EMS-ESP version to Cloudflare
+        env:
+          CF_ACCOUNT_ID: ${{ secrets.CF_ACCOUNT_ID }}
+          CF_NAMESPACE_ID: ${{ secrets.CF_NAMESPACE_ID }}
+          CF_API_TOKEN: ${{ secrets.CF_API_TOKEN }}
+        run: |
+          version=$(grep -E '^#define EMSESP_APP_VERSION' ./src/emsesp_version.h | awk -F'"' '{print $2}')
+          if [ "$GITHUB_REF" = "refs/heads/main" ]; then
+            KV_ENV="stable"
+          else
+            KV_ENV="dev"
+          fi
+          JSON_DATA=$(jq -n \
+            --arg version "$version" \
+            --arg date "$(date -u +%Y-%m-%dT%H:%M:%SZ)" \
+            '{version: $version, date: $date}')
+          echo "KV_ENV: $KV_ENV"
+          echo "JSON_DATA: $JSON_DATA"
+          curl -sS --fail-with-body \
+            -X PUT "https://api.cloudflare.com/client/v4/accounts/${CF_ACCOUNT_ID}/storage/kv/namespaces/${CF_NAMESPACE_ID}/values/${KV_ENV}" \
+            -H "Authorization: Bearer ${CF_API_TOKEN}" \
+            -H "Content-Type: application/json" \
+            -d "$JSON_DATA"
+          echo

.gitignore

@@ -2,6 +2,7 @@
 .vscode/c_cpp_properties.json
 .vscode/extensions.json
 .vscode/launch.json
+.vscode/settings.json
 
 # c++ compiling
 .clang_complete
@@ -63,7 +64,7 @@ words-found-verbose.txt
 # sonarlint
 compile_commands.json
 
-# pioarduino + hybrid
+# other files
 managed_components
 dependencies.lock
 CMakeLists.txt
@@ -75,3 +76,4 @@ pnpm-lock.yaml
 .cache/
 interface/.tsbuildinfo
 test/test_api/package-lock.json
+.clangd

.vscode/settings.json

@@ -1,101 +0,0 @@
-{
-    "search.exclude": {
-      "**/.yarn": true,
-      "**/.pnp.*": true
-    },
-    "editor.codeActionsOnSave": {
-      "source.fixAll": "explicit"
-    },
-    "eslint.validate": [
-      "typescript"
-    ],
-    "eslint.codeActionsOnSave.rules": null,
-    "eslint.nodePath": "interface/.yarn/sdks",
-    "eslint.workingDirectories": ["interface"],
-    "prettier.prettierPath": "",
-    "typescript.enablePromptUseWorkspaceTsdk": true,
-    "files.associations": {
-      "*.tsx": "typescriptreact",
-      "*.tcc": "cpp",
-      "optional": "cpp",
-      "istream": "cpp",
-      "ostream": "cpp",
-      "ratio": "cpp",
-      "system_error": "cpp",
-      "array": "cpp",
-      "functional": "cpp",
-      "regex": "cpp",
-      "tuple": "cpp",
-      "type_traits": "cpp",
-      "utility": "cpp",
-      "string": "cpp",
-      "string_view": "cpp",
-      "atomic": "cpp",
-      "bitset": "cpp",
-      "cctype": "cpp",
-      "chrono": "cpp",
-      "clocale": "cpp",
-      "cmath": "cpp",
-      "condition_variable": "cpp",
-      "cstdarg": "cpp",
-      "cstddef": "cpp",
-      "cstdint": "cpp",
-      "cstdio": "cpp",
-      "cstdlib": "cpp",
-      "cstring": "cpp",
-      "ctime": "cpp",
-      "cwchar": "cpp",
-      "cwctype": "cpp",
-      "deque": "cpp",
-      "list": "cpp",
-      "unordered_map": "cpp",
-      "unordered_set": "cpp",
-      "vector": "cpp",
-      "exception": "cpp",
-      "algorithm": "cpp",
-      "iterator": "cpp",
-      "map": "cpp",
-      "memory": "cpp",
-      "memory_resource": "cpp",
-      "numeric": "cpp",
-      "random": "cpp",
-      "set": "cpp",
-      "fstream": "cpp",
-      "initializer_list": "cpp",
-      "iomanip": "cpp",
-      "iosfwd": "cpp",
-      "iostream": "cpp",
-      "limits": "cpp",
-      "mutex": "cpp",
-      "new": "cpp",
-      "sstream": "cpp",
-      "stdexcept": "cpp",
-      "streambuf": "cpp",
-      "thread": "cpp",
-      "cinttypes": "cpp",
-      "typeinfo": "cpp"
-    },
-    "todo-tree.filtering.excludeGlobs": [
-      "**/vendor/**",
-      "**/node_modules/**",
-      "**/dist/**",
-      "**/bower_components/**",
-      "**/build/**",
-      "**/.vscode/**",
-      "**/.github/**",
-      "**/_output/**",
-      "**/*.min.*",
-      "**/*.map",
-      "**/ArduinoJson/**"
-    ],
-    "cSpell.enableFiletypes": [
-      "ini",
-      "makefile"
-    ],
-    "typescript.preferences.preferTypeOnlyAutoImports": true,
-    "sonarlint.pathToCompileCommands": "${workspaceFolder}/compile_commands.json",
-    "sonarlint.connectedMode.project": {
-      "connectionId": "emsesp",
-      "projectKey": "emsesp_EMS-ESP32"
-    }
-  }

CHANGELOG_LATEST.md

@@ -2,7 +2,7 @@
 
 For more details go to [emsesp.org](https://emsesp.org/).
 
-## [3.8.2]
+## [3.9.0]
 
 ## Added
 
@@ -12,13 +12,16 @@ For more details go to [emsesp.org](https://emsesp.org/).
 - prometheus metrics for temperature/analog/scheduler/custom [#2962](https://github.com/emsesp/EMS-ESP32/issues/2962)
 - boiler pumpkick [#2965](https://github.com/emsesp/EMS-ESP32/discussions/2965)
 - heatpump reset [#2933](https://github.com/emsesp/EMS-ESP32/issues/2933)
+- e-mail notification using ReadyMail Client
 - 2.nd freshwater module (dhw4, dhw5) [#2991](https://github.com/emsesp/EMS-ESP32/issues/2991)
 - full system backup and restore
+- updated version check [#3047](https://github.com/emsesp/EMS-ESP32/issues/3047)
 
 ## Fixed
 
 - SRC climate creation [#2936](https://github.com/emsesp/EMS-ESP32/issues/2936) and [#2960](https://github.com/emsesp/EMS-ESP32/issues/2960)
 - missing translations [#3015](https://github.com/emsesp/EMS-ESP32/issues/3015)
+- custom entities check fetch length
 
 ## Changed
 
@@ -30,5 +33,9 @@ For more details go to [emsesp.org](https://emsesp.org/).
 - support `minflowtemp` and `baseflowtemp` [#2969](https://github.com/emsesp/EMS-ESP32/discussions/2969)
 - update version if it is 00.00 in first read [#2981](https://github.com/emsesp/EMS-ESP32/issues/2981)
 - device class for % values [#2980](https://github.com/emsesp/EMS-ESP32/issues/2980)
+- use tasmota core 2026.03.30
+- secure mqtt uses ESP_SSLClient
 - fetch telegrams: set length to fetch [#3017](https://github.com/emsesp/EMS-ESP32/issues/3017)
 - move http client from stack to heap
+- heap optimizations [#3021](https://github.com/emsesp/EMS-ESP32/discussions/3021)
+- refactored network code into a single class [#3052](https://github.com/emsesp/EMS-ESP32/pull/3052)

Makefile

@@ -47,8 +47,8 @@ MAKEFLAGS += -j$(JOBS) -l$(shell echo $$(($(JOBS) * 2)))
 #----------------------------------------------------------------------
 TARGET    := emsesp
 BUILD     := build
-SOURCES   := src/core src/devices src/web src/test lib_standalone lib/semver lib/espMqttClient/src lib/espMqttClient/src/*         lib/ArduinoJson/src lib/uuid-common/src lib/uuid-console/src lib/uuid-log/src   lib/PButton 
-INCLUDES  := src/core src/devices src/web src/test lib_standalone lib/* lib/semver lib/espMqttClient/src lib/espMqttClient/src/Transport lib/ArduinoJson/src lib/uuid-common/src lib/uuid-console/src lib/uuid-log/src   lib/uuid-telnet/src lib/uuid-syslog/src
+SOURCES   := src/core src/devices src/web src/test lib_standalone       lib/espMqttClient/src lib/espMqttClient/src/*         lib/ArduinoJson/src lib/uuid-common/src lib/uuid-console/src lib/uuid-log/src   lib/PButton 
+INCLUDES  := src/core src/devices src/web src/test lib_standalone lib/* lib/espMqttClient/src lib/espMqttClient/src/Transport lib/ArduinoJson/src lib/uuid-common/src lib/uuid-console/src lib/uuid-log/src   lib/uuid-telnet/src lib/uuid-syslog/src
 LIBRARIES :=
 
 CPPCHECK = cppcheck
@@ -113,7 +113,7 @@ CXX := /usr/bin/g++
 CPPFLAGS  += $(DEFINES) $(DEFAULTS) $(INCLUDE)
 CPPFLAGS  += -ggdb -g3 -MMD
 CPPFLAGS  += -flto=auto
-CPPFLAGS  += -Wall -Wextra -Werror -Wswitch-enum
+CPPFLAGS  += -Wall -Wextra -Werror -Wno-switch-enum
 CPPFLAGS  += -Wno-unused-parameter -Wno-missing-braces -Wno-vla-cxx-extension
 CPPFLAGS  += -ffunction-sections -fdata-sections -fno-exceptions -fno-rtti -fno-threadsafe-statics
 CPPFLAGS  += -Os -DNDEBUG

boards/c3_mini_4M.json

@@ -5,7 +5,7 @@
       },
       "core": "esp32",
       "extra_flags": [
-        "-DTASMOTA_SDK",
+        "-DNO_TLS_SUPPORT",
         "-DARDUINO_LOLIN_C3_MINI",
         "-DARDUINO_USB_MODE=1",
         "-DARDUINO_USB_CDC_ON_BOOT=1"

boards/s2_4M_P.json

@@ -6,7 +6,7 @@
       "core": "esp32",
       "extra_flags": [
         "-DBOARD_HAS_PSRAM",
-        "-DTASMOTA_SDK",
+        "-DNO_TLS_SUPPORT",
         "-DARDUINO_USB_CDC_ON_BOOT=1",
         "-DARDUINO_USB_MODE=0"
       ],

boards/s3_32M_P.json

@@ -21,7 +21,7 @@
       "arduino",
       "espidf"
     ],
-    "name": "Espressif ESP32-S3 32M Flash OPI PSRAM, 4608KB Code/OTA, 2MB FS",
+    "name": "Tasmota ESP32-S3 32M Flash OPI PSRAM, 4608KB Code/OTA, 2MB FS",
     "upload": {
       "flash_size": "32MB",
       "maximum_ram_size": 327680,

boards/s_16M.json

@@ -1,7 +1,7 @@
 {
     "build": {
       "core": "esp32",
-      "extra_flags": "-DTASMOTA_SDK",
+      "extra_flags": "-DNO_TLS_SUPPORT",
       "f_cpu": "240000000L",
       "f_flash": "40000000L",
       "flash_mode": "dio",
@@ -19,7 +19,7 @@
       "arduino",
       "espidf"
     ],
-    "name": "Espressif ESP32 16M Flash, 4608KB Code/OTA, 2MB FS",
+    "name": "Tasmota ESP32 16M Flash, 4608KB Code/OTA, 2MB FS",
     "upload": {
       "flash_size": "16MB",
       "maximum_ram_size": 327680,

boards/s_16M_P.json

@@ -19,7 +19,7 @@
       "arduino",
       "espidf"
     ],
-    "name": "Espressif ESP32 16M Flash DIO PSRAM, 4608KB Code/OTA, 2MB FS",
+    "name": "Tasmota ESP32 16M Flash DIO PSRAM, 4608KB Code/OTA, 2MB FS",
     "upload": {
       "flash_size": "16MB",
       "maximum_ram_size": 327680,

boards/s_4M.json

@@ -1,7 +1,7 @@
 {
     "build": {
       "core": "esp32",
-      "extra_flags": "-DTASMOTA_SDK",
+      "extra_flags": "-DNO_TLS_SUPPORT",
       "f_cpu": "240000000L",
       "f_flash": "40000000L",
       "flash_mode": "dio",

boards/seeed_xiao_esp32c6.json

@@ -2,6 +2,7 @@
   "build": {
     "core": "esp32",
     "extra_flags": [
+      "-DNO_TLS_SUPPORT",
       "-DARDUINO_XIAO_ESP32C6",
       "-DARDUINO_USB_MODE=1",
       "-DARDUINO_USB_CDC_ON_BOOT=1"

cspell.json

@@ -38,6 +38,7 @@
     "vite.config.ts",
     "lib/esp32-psram/**",
     "test/test_api/test_api.h",
-    "lib_standalone/**"
+    "lib_standalone/**",
+    "**/*.js"
   ]
   }

docs/dump_telegrams.csv

@@ -171,6 +171,7 @@ telegram_type_id,name,is_fetched
 0x0468,HPSet, 
 0x0469,HPSet, 
 0x046A,HPSet, 
+0x0470,RC300Summer2, 
 0x0471,RC300Summer2, 
 0x0472,RC300Summer2, 
 0x0473,RC300Summer2, 
@@ -178,7 +179,6 @@ telegram_type_id,name,is_fetched
 0x0475,RC300Summer2, 
 0x0476,RC300Summer2, 
 0x0477,RC300Summer2, 
-0x0478,RC300Summer2, 
 0x047B,HP2, 
 0x0484,HPSilentMode,fetched
 0x0485,HpCooling,fetched

interface/package.json

@@ -1,9 +1,9 @@
 {
   "name": "EMS-ESP",
-  "version": "3.8.2",
+  "version": "3.9.0",
   "description": "EMS-ESP WebUI",
   "homepage": "https://emsesp.org",
-  "author": "proddy, emsesp.org",
+  "author": "emsesp.org",
   "license": "MIT",
   "private": true,
   "type": "module",
@@ -17,7 +17,7 @@
     "preview-standalone": "typesafe-i18n --no-watch && vite build && concurrently -c \"auto\" \"pnpm:mock-rest\" \"vite preview\"",
     "standalone": "concurrently -c \"auto\" \"typesafe-i18n\" \"pnpm:mock-rest\" \"vite dev\"",
     "typesafe-i18n": "typesafe-i18n --no-watch",
-    "build_webUI": "typesafe-i18n --no-watch && vite build && node progmem-generator.js",
+    "build-webUI": "typesafe-i18n --no-watch && vite build && node progmem-generator.js",
     "format": "prettier -l -w '**/*.{ts,tsx,js,css,json,md}'",
     "lint": "eslint . --fix",
     "standalone-devcontainer": "concurrently -c \"auto\" \"typesafe-i18n\" \"pnpm:mock-rest\" \"vite --host\""
@@ -28,44 +28,37 @@
     "@emotion/styled": "^11.14.1",
     "@mui/icons-material": "^9.0.0",
     "@mui/material": "^9.0.0",
-    "@preact/compat": "^18.3.2",
     "@table-library/react-table-library": "4.1.15",
-    "alova": "3.5.1",
+    "alova": "^3.5.1",
     "async-validator": "^4.2.5",
     "etag": "^1.8.1",
-    "formidable": "^3.5.4",
     "jwt-decode": "^4.0.0",
-    "magic-string": "^0.30.21",
     "mime-types": "^3.0.2",
     "preact": "^10.29.1",
     "react": "^19.2.5",
     "react-dom": "^19.2.5",
     "react-icons": "^5.6.0",
-    "react-router": "^7.14.1",
-    "react-toastify": "^11.0.5",
+    "react-router": "^7.14.2",
+    "react-toastify": "^11.1.0",
     "typesafe-i18n": "^5.27.1",
     "typescript": "^6.0.3"
   },
   "devDependencies": {
-    "@babel/core": "^7.29.0",
     "@eslint/js": "^10.0.1",
-    "@preact/compat": "^18.3.2",
     "@preact/preset-vite": "^2.10.5",
     "@trivago/prettier-plugin-sort-imports": "^6.0.2",
     "@types/node": "^25.6.0",
     "@types/react": "^19.2.14",
     "@types/react-dom": "^19.2.3",
-    "axe-core": "^4.11.3",
     "concurrently": "^9.2.1",
-    "eslint": "^10.2.0",
+    "eslint": "^10.3.0",
     "eslint-config-prettier": "^10.1.8",
     "prettier": "^3.8.3",
     "rollup-plugin-visualizer": "^7.0.1",
-    "terser": "^5.46.1",
-    "typescript-eslint": "^8.58.2",
-    "vite": "^8.0.8",
-    "vite-plugin-imagemin": "^0.6.1",
-    "vite-tsconfig-paths": "^6.1.1"
+    "terser": "^5.46.2",
+    "typescript-eslint": "^8.59.1",
+    "vite": "^8.0.10",
+    "vite-plugin-imagemin": "^0.6.1"
   },
-  "packageManager": "pnpm@10.33.0+sha512.10568bb4a6afb58c9eb3630da90cc9516417abebd3fabbe6739f0ae795728da1491e9db5a544c76ad8eb7570f5c4bb3d6c637b2cb41bfdcdb47fa823c8649319"
+  "packageManager": "pnpm@10.33.2+sha512.a90faf6feeab71ad6c6e57f94e0fe1a12f5dcc22cd754db40ae9593eb6a3e0b6b12e3540218bb37ae083404b1f2ce6db2a4121e979829b4aff94b99f49da1cf8"
 }

interface/progmem-generator.js

@@ -24,20 +24,26 @@ let bundleStats = {
   other: { count: 0, uncompressed: 0, compressed: 0 }
 };
 
-const generateWWWClass =
-  () => `typedef std::function<void(const char * uri, const String & contentType, const uint8_t * content, size_t len, const String & hash)> RouteRegistrationHandler;
-// Bundle Statistics:
+// AsyncWebHandler that performs the lookup.
+const generateWWWClass = () => `// Bundle Statistics:
 // - Total compressed size: ${(totalSize / 1000).toFixed(1)} KB
 // - Total uncompressed size: ${(Object.values(bundleStats).reduce((sum, stat) => sum + stat.uncompressed, 0) / 1000).toFixed(1)} KB
 // - Compression ratio: ${(((Object.values(bundleStats).reduce((sum, stat) => sum + stat.uncompressed, 0) - totalSize) / Object.values(bundleStats).reduce((sum, stat) => sum + stat.uncompressed, 0)) * 100).toFixed(1)}%
 // - Generated on: ${new Date().toISOString()}
 
-class WWWData {
-${INDENT}public:
-${INDENT.repeat(2)}static void registerRoutes(RouteRegistrationHandler handler) {
-${fileInfo.map((f) => `${INDENT.repeat(3)}handler("${f.uri}", "${f.mimeType}", ${f.variable}, ${f.size}, ${f.hash});`).join('\n')}
-${INDENT.repeat(2)}}
+struct WWWAsset {
+${INDENT}const char *    uri;
+${INDENT}const char *    contentType;
+${INDENT}const uint8_t * content;
+${INDENT}size_t          len;
+${INDENT}const char *    etag; // already includes enclosing double quotes
 };
+
+static const WWWAsset WWW_ASSETS[] = {
+${fileInfo.map((f) => `${INDENT}{"${f.uri}", "${f.mimeType}", ${f.variable}, ${f.size}, "\\"${f.rawHash}\\""},`).join('\n')}
+};
+
+static constexpr size_t WWW_ASSETS_COUNT = sizeof(WWW_ASSETS) / sizeof(WWW_ASSETS[0]);
 `;
 
 const getFilesSync = (dir, files = []) => {
@@ -72,6 +78,7 @@ const writeFile = (relativeFilePath, buffer) => {
   const zipBuffer = zlib.gzipSync(buffer, { level: 9 });
   // const hash = crypto.createHash('sha256').update(zipBuffer).digest('hex');
   const hash = etag(zipBuffer); // use smaller md5 instead of sha256
+  const rawHash = hash.replace(/^"|"$/g, '');
 
   zipBuffer.forEach((b) => {
     if (!(size % bytesPerLine)) {
@@ -94,7 +101,8 @@ const writeFile = (relativeFilePath, buffer) => {
     mimeType,
     variable,
     size,
-    hash
+    hash,
+    rawHash
   });
 
   totalSize += size;

interface/src/App.tsx

@@ -1,4 +1,4 @@
-import { memo, useCallback, useEffect, useState } from 'react';
+import { memo, useEffect, useState } from 'react';
 import { ToastContainer, Zoom } from 'react-toastify';
 
 import AppRouting from 'AppRouting';
@@ -46,19 +46,17 @@ const App = memo(() => {
   const [wasLoaded, setWasLoaded] = useState(false);
   const [locale, setLocale] = useState<Locales>('en');
 
-  // Memoize locale initialization to prevent unnecessary re-runs
-  const initializeLocale = useCallback(async () => {
-    const browserLocale = detectLocale('en', AVAILABLE_LOCALES, navigatorDetector);
-    const newLocale = (localStorage.getItem('lang') || browserLocale) as Locales;
-    localStorage.setItem('lang', newLocale);
-    setLocale(newLocale);
-    await loadLocaleAsync(newLocale);
-    setWasLoaded(true);
-  }, []);
-
   useEffect(() => {
+    const initializeLocale = async () => {
+      const browserLocale = detectLocale('en', AVAILABLE_LOCALES, navigatorDetector);
+      const newLocale = (localStorage.getItem('lang') || browserLocale) as Locales;
+      localStorage.setItem('lang', newLocale);
+      setLocale(newLocale);
+      await loadLocaleAsync(newLocale);
+      setWasLoaded(true);
+    };
     void initializeLocale();
-  }, [initializeLocale]);
+  }, []);
 
   if (!wasLoaded) return null;
 

interface/src/AppRouting.tsx

@@ -1,19 +1,13 @@
-import { type FC, Suspense, lazy, memo, useContext, useEffect, useRef } from 'react';
+import { type FC, memo, useContext, useEffect, useRef } from 'react';
 import { Navigate, Route, Routes } from 'react-router';
 import { toast } from 'react-toastify';
 
-import {
-  LoadingSpinner,
-  RequireAuthenticated,
-  RequireUnauthenticated
-} from 'components';
+import AuthenticatedRouting from 'AuthenticatedRouting';
+import SignIn from 'SignIn';
+import { RequireAuthenticated, RequireUnauthenticated } from 'components';
 import { Authentication, AuthenticationContext } from 'contexts/authentication';
 import { useI18nContext } from 'i18n/i18n-react';
 
-// Lazy load route components for better code splitting
-const SignIn = lazy(() => import('SignIn'));
-const AuthenticatedRouting = lazy(() => import('AuthenticatedRouting'));
-
 interface SecurityRedirectProps {
   readonly message: string;
   readonly signOut?: boolean;
@@ -45,34 +39,32 @@ const AppRouting: FC = memo(() => {
 
   return (
     <Authentication>
-      <Suspense fallback={<LoadingSpinner />}>
-        <Routes>
-          <Route
-            path="/unauthorized"
-            element={<RootRedirect message={LL.PLEASE_SIGNIN()} signOut />}
-          />
-          <Route
-            path="/fileUpdated"
-            element={<RootRedirect message={LL.UPLOAD_SUCCESSFUL()} />}
-          />
-          <Route
-            path="/"
-            element={
-              <RequireUnauthenticated>
-                <SignIn />
-              </RequireUnauthenticated>
-            }
-          />
-          <Route
-            path="/*"
-            element={
-              <RequireAuthenticated>
-                <AuthenticatedRouting />
-              </RequireAuthenticated>
-            }
-          />
-        </Routes>
-      </Suspense>
+      <Routes>
+        <Route
+          path="/unauthorized"
+          element={<RootRedirect message={LL.PLEASE_SIGNIN()} signOut />}
+        />
+        <Route
+          path="/fileUpdated"
+          element={<RootRedirect message={LL.UPLOAD_SUCCESSFUL()} />}
+        />
+        <Route
+          path="/"
+          element={
+            <RequireUnauthenticated>
+              <SignIn />
+            </RequireUnauthenticated>
+          }
+        />
+        <Route
+          path="/*"
+          element={
+            <RequireAuthenticated>
+              <AuthenticatedRouting />
+            </RequireAuthenticated>
+          }
+        />
+      </Routes>
     </Authentication>
   );
 });

interface/src/AuthenticatedRouting.tsx

@@ -1,86 +1,77 @@
-import { Suspense, lazy, memo, useContext } from 'react';
+import { memo, useContext } from 'react';
 import { Navigate, Route, Routes } from 'react-router';
 
-import { Layout, LoadingSpinner } from 'components';
+import CustomEntities from 'app/main/CustomEntities';
+import Customizations from 'app/main/Customizations';
+import Dashboard from 'app/main/Dashboard';
+import Devices from 'app/main/Devices';
+import Help from 'app/main/Help';
+import Modules from 'app/main/Modules';
+import Scheduler from 'app/main/Scheduler';
+import Sensors from 'app/main/Sensors';
+import UserProfile from 'app/main/UserProfile';
+import APSettings from 'app/settings/APSettings';
+import ApplicationSettings from 'app/settings/ApplicationSettings';
+import DownloadUpload from 'app/settings/DownloadUpload';
+import MqttSettings from 'app/settings/MqttSettings';
+import NTPSettings from 'app/settings/NTPSettings';
+import Settings from 'app/settings/Settings';
+import Version from 'app/settings/Version';
+import Network from 'app/settings/network/Network';
+import Security from 'app/settings/security/Security';
+import APStatus from 'app/status/APStatus';
+import Activity from 'app/status/Activity';
+import HardwareStatus from 'app/status/HardwareStatus';
+import MqttStatus from 'app/status/MqttStatus';
+import NTPStatus from 'app/status/NTPStatus';
+import NetworkStatus from 'app/status/NetworkStatus';
+import Status from 'app/status/Status';
+import SystemLog from 'app/status/SystemLog';
+import { Layout } from 'components';
 import { AuthenticatedContext } from 'contexts/authentication';
 
-// Lazy load all route components for better code splitting
-const Dashboard = lazy(() => import('app/main/Dashboard'));
-const Devices = lazy(() => import('app/main/Devices'));
-const Sensors = lazy(() => import('app/main/Sensors'));
-const Help = lazy(() => import('app/main/Help'));
-const Customizations = lazy(() => import('app/main/Customizations'));
-const Scheduler = lazy(() => import('app/main/Scheduler'));
-const CustomEntities = lazy(() => import('app/main/CustomEntities'));
-const Modules = lazy(() => import('app/main/Modules'));
-const UserProfile = lazy(() => import('app/main/UserProfile'));
-
-const Status = lazy(() => import('app/status/Status'));
-const HardwareStatus = lazy(() => import('app/status/HardwareStatus'));
-const Activity = lazy(() => import('app/status/Activity'));
-const SystemLog = lazy(() => import('app/status/SystemLog'));
-const MqttStatus = lazy(() => import('app/status/MqttStatus'));
-const NTPStatus = lazy(() => import('app/status/NTPStatus'));
-const APStatus = lazy(() => import('app/status/APStatus'));
-const NetworkStatus = lazy(() => import('app/status/NetworkStatus'));
-const Version = lazy(() => import('app/status/Version'));
-
-const Settings = lazy(() => import('app/settings/Settings'));
-const ApplicationSettings = lazy(() => import('app/settings/ApplicationSettings'));
-const MqttSettings = lazy(() => import('app/settings/MqttSettings'));
-const NTPSettings = lazy(() => import('app/settings/NTPSettings'));
-const APSettings = lazy(() => import('app/settings/APSettings'));
-const DownloadUpload = lazy(() => import('app/settings/DownloadUpload'));
-const Network = lazy(() => import('app/settings/network/Network'));
-const Security = lazy(() => import('app/settings/security/Security'));
-
 const AuthenticatedRouting = memo(() => {
   const { me } = useContext(AuthenticatedContext);
   return (
     <Layout>
-      <Suspense fallback={<LoadingSpinner />}>
-        <Routes>
-          <Route path="/dashboard/*" element={<Dashboard />} />
-          <Route path="/devices/*" element={<Devices />} />
-          <Route path="/sensors/*" element={<Sensors />} />
-          <Route path="/help/*" element={<Help />} />
-          <Route path="/user/*" element={<UserProfile />} />
+      <Routes>
+        <Route path="/dashboard/*" element={<Dashboard />} />
+        <Route path="/devices/*" element={<Devices />} />
+        <Route path="/sensors/*" element={<Sensors />} />
+        <Route path="/help/*" element={<Help />} />
+        <Route path="/user/*" element={<UserProfile />} />
 
-          <Route path="/status/*" element={<Status />} />
-          <Route path="/status/hardwarestatus/*" element={<HardwareStatus />} />
-          <Route path="/status/activity" element={<Activity />} />
-          <Route path="/status/log" element={<SystemLog />} />
-          <Route path="/status/mqtt" element={<MqttStatus />} />
-          <Route path="/status/ntp" element={<NTPStatus />} />
-          <Route path="/status/ap" element={<APStatus />} />
-          <Route path="/status/network" element={<NetworkStatus />} />
-          <Route path="/status/version" element={<Version />} />
+        <Route path="/status/*" element={<Status />} />
+        <Route path="/status/hardwarestatus/*" element={<HardwareStatus />} />
+        <Route path="/status/activity" element={<Activity />} />
+        <Route path="/status/log" element={<SystemLog />} />
+        <Route path="/status/mqtt" element={<MqttStatus />} />
+        <Route path="/status/ntp" element={<NTPStatus />} />
+        <Route path="/status/ap" element={<APStatus />} />
+        <Route path="/status/network" element={<NetworkStatus />} />
 
-          {me.admin && (
-            <>
-              <Route path="/settings" element={<Settings />} />
-              <Route
-                path="/settings/application"
-                element={<ApplicationSettings />}
-              />
-              <Route path="/settings/mqtt" element={<MqttSettings />} />
-              <Route path="/settings/ntp" element={<NTPSettings />} />
-              <Route path="/settings/ap" element={<APSettings />} />
-              <Route path="/settings/modules" element={<Modules />} />
-              <Route path="/settings/downloadUpload" element={<DownloadUpload />} />
+        {me.admin && (
+          <>
+            <Route path="/settings" element={<Settings />} />
+            <Route path="/settings/version" element={<Version />} />
+            <Route path="/settings/application" element={<ApplicationSettings />} />
+            <Route path="/settings/mqtt" element={<MqttSettings />} />
+            <Route path="/settings/ntp" element={<NTPSettings />} />
+            <Route path="/settings/ap" element={<APSettings />} />
+            <Route path="/settings/modules" element={<Modules />} />
+            <Route path="/settings/downloadUpload" element={<DownloadUpload />} />
 
-              <Route path="/settings/network/*" element={<Network />} />
-              <Route path="/settings/security/*" element={<Security />} />
+            <Route path="/settings/network/*" element={<Network />} />
+            <Route path="/settings/security/*" element={<Security />} />
 
-              <Route path="/customizations" element={<Customizations />} />
-              <Route path="/scheduler" element={<Scheduler />} />
-              <Route path="/customentities" element={<CustomEntities />} />
-            </>
-          )}
+            <Route path="/customizations" element={<Customizations />} />
+            <Route path="/scheduler" element={<Scheduler />} />
+            <Route path="/customentities" element={<CustomEntities />} />
+          </>
+        )}
 
-          <Route path="/*" element={<Navigate to="/" />} />
-        </Routes>
-      </Suspense>
+        <Route path="/*" element={<Navigate to="/" />} />
+      </Routes>
     </Layout>
   );
 });

interface/src/SignIn.tsx

@@ -18,7 +18,7 @@ import { PROJECT_NAME } from 'env';
 import { useI18nContext } from 'i18n/i18n-react';
 import type { SignInRequest } from 'types';
 import { onEnterCallback, updateValue } from 'utils';
-import { SIGN_IN_REQUEST_VALIDATOR, validate } from 'validators';
+import { SIGN_IN_REQUEST_VALIDATOR, ValidationError, validate } from 'validators';
 
 const SignIn = memo(() => {
   const authenticationContext = useContext(AuthenticationContext);
@@ -43,7 +43,6 @@ const SignIn = memo(() => {
     }
   });
 
-  // Memoize callback to prevent recreation on every render
   const updateLoginRequestValue = useMemo(
     () =>
       updateValue((updater) =>
@@ -65,7 +64,7 @@ const SignIn = memo(() => {
     });
   }, [callSignIn, signInRequest, LL]);
 
-  const validateAndSignIn = useCallback(async () => {
+  const validateAndSignIn = async () => {
     setProcessing(true);
     SIGN_IN_REQUEST_VALIDATOR.messages({
       required: LL.IS_REQUIRED('%s')
@@ -74,10 +73,10 @@ const SignIn = memo(() => {
       await validate(SIGN_IN_REQUEST_VALIDATOR, signInRequest);
       await signIn();
     } catch (error) {
-      setFieldErrors(error as ValidateFieldsError);
+      setFieldErrors((error as ValidationError).fieldErrors);
       setProcessing(false);
     }
-  }, [signInRequest, signIn, LL]);
+  };
 
   const submitOnEnter = useMemo(() => onEnterCallback(signIn), [signIn]);
 

interface/src/api/endpoints.ts

@@ -57,12 +57,3 @@ export const alovaInstance = createAlova({
     onSuccess: handleResponse
   }
 });
-
-export const alovaInstanceGH = createAlova({
-  baseURL:
-    process.env.NODE_ENV === 'development'
-      ? '/gh'
-      : 'https://api.github.com/repos/emsesp/EMS-ESP32/releases',
-  statesHook: ReactHook,
-  requestAdapter: xhrRequestAdapter()
-});

interface/src/api/system.ts

@@ -1,6 +1,6 @@
 import type { LogSettings, SystemStatus } from 'types';
 
-import { alovaInstance, alovaInstanceGH } from './endpoints';
+import { alovaInstance } from './endpoints';
 
 // systemStatus - also used to ping in System Monitor for pinging
 export const readSystemStatus = () =>
@@ -13,29 +13,6 @@ export const updateLogSettings = (data: LogSettings) =>
   alovaInstance.Post('/rest/logSettings', data);
 export const fetchLogES = () => alovaInstance.Get('/es/log');
 
-// Get versions from GitHub
-// cache for 10 minutes to stop getting the IP blocked by GitHub
-export const getStableVersion = () =>
-  alovaInstanceGH.Get('latest', {
-    cacheFor: 60 * 10 * 1000,
-    transform(response: { data: { name: string; published_at: string } }) {
-      return {
-        name: response.data.name.substring(1),
-        published_at: response.data.published_at
-      };
-    }
-  });
-export const getDevVersion = () =>
-  alovaInstanceGH.Get('tags/latest', {
-    cacheFor: 60 * 10 * 1000,
-    transform(response: { data: { name: string; published_at: string } }) {
-      return {
-        name: response.data.name.split(/\s+/).splice(-1)[0]?.substring(1) || '',
-        published_at: response.data.published_at
-      };
-    }
-  });
-
 const UPLOAD_TIMEOUT = 60000; // 1 minute
 
 export const uploadFile = (file: File) => {

interface/src/app/main/CustomEntities.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useMemo, useState } from 'react';
+import { useState } from 'react';
 import { useBlocker } from 'react-router';
 import { toast } from 'react-toastify';
 
@@ -57,20 +57,18 @@ const CustomEntities = () => {
     initialData: []
   });
 
-  const intervalCallback = useCallback(() => {
+  useInterval(() => {
     if (!dialogOpen && !numChanges) {
       void fetchEntities();
     }
-  }, [dialogOpen, numChanges, fetchEntities]);
-
-  useInterval(intervalCallback);
+  });
 
   const { send: writeEntities } = useRequest(
     (data: Entities) => writeCustomEntities(data),
     { immediate: false }
   );
 
-  const hasEntityChanged = useCallback((ei: EntityItem) => {
+  const hasEntityChanged = (ei: EntityItem) => {
     return (
       ei.id !== ei.o_id ||
       ei.ram !== ei.o_ram ||
@@ -86,21 +84,19 @@ const CustomEntities = () => {
       ei.deleted !== ei.o_deleted ||
       (ei.value || '') !== (ei.o_value || '')
     );
-  }, []);
+  };
 
-  const entity_theme = useMemo(
-    () =>
-      useTheme({
-        Table: `
+  const entity_theme = useTheme({
+    Table: `
       --data-table-library_grid-template-columns: repeat(1, minmax(60px, 1fr)) minmax(80px, auto) 80px 80px 80px 120px;
     `,
-        BaseRow: `
+    BaseRow: `
       font-size: 14px;
       .td {
         height: 32px;
       }
     `,
-        BaseCell: `
+    BaseCell: `
       &:nth-of-type(1) {
         padding: 8px;
       }
@@ -120,7 +116,7 @@ const CustomEntities = () => {
         text-align: center;
       }
     `,
-        HeaderRow: `
+    HeaderRow: `
       text-transform: uppercase;
       background-color: black;
       color: #90CAF9;
@@ -129,7 +125,7 @@ const CustomEntities = () => {
         height: 36px;
       }
     `,
-        Row: `
+    Row: `
       background-color: #1e1e1e;
       position: relative;
       cursor: pointer;
@@ -140,11 +136,9 @@ const CustomEntities = () => {
         background-color: #177ac9;
       }
     `
-      }),
-    []
-  );
+  });
 
-  const saveEntities = useCallback(async () => {
+  const saveEntities = async () => {
     await writeEntities({
       entities: entities
         .filter((ei: EntityItem) => !ei.deleted)
@@ -173,44 +167,41 @@ const CustomEntities = () => {
         await fetchEntities();
         setNumChanges(0);
       });
-  }, [entities, writeEntities, LL, fetchEntities]);
+  };
 
-  const editEntityItem = useCallback((ei: EntityItem) => {
+  const editEntityItem = (ei: EntityItem) => {
     setCreating(false);
     setSelectedEntityItem(ei);
     setDialogOpen(true);
-  }, []);
+  };
 
-  const onDialogClose = useCallback(() => {
+  const onDialogClose = () => {
     setDialogOpen(false);
-  }, []);
+  };
 
-  const onDialogCancel = useCallback(async () => {
+  const onDialogCancel = async () => {
     await fetchEntities().then(() => {
       setNumChanges(0);
     });
-  }, [fetchEntities]);
+  };
 
-  const onDialogSave = useCallback(
-    (updatedItem: EntityItem) => {
-      setDialogOpen(false);
-      void updateState(readCustomEntities(), (data: EntityItem[]) => {
-        const new_data = creating
-          ? [
-              ...data.filter((ei) => creating || ei.o_id !== updatedItem.o_id),
-              updatedItem
-            ]
-          : data.map((ei) =>
-              ei.id === updatedItem.id ? { ...ei, ...updatedItem } : ei
-            );
-        setNumChanges(new_data.filter((ei) => hasEntityChanged(ei)).length);
-        return new_data;
-      });
-    },
-    [creating, hasEntityChanged]
-  );
+  const onDialogSave = (updatedItem: EntityItem) => {
+    setDialogOpen(false);
+    void updateState(readCustomEntities(), (data: EntityItem[]) => {
+      const new_data = creating
+        ? [
+            ...data.filter((ei) => creating || ei.o_id !== updatedItem.o_id),
+            updatedItem
+          ]
+        : data.map((ei) =>
+            ei.id === updatedItem.id ? { ...ei, ...updatedItem } : ei
+          );
+      setNumChanges(new_data.filter((ei) => hasEntityChanged(ei)).length);
+      return new_data;
+    });
+  };
 
-  const onDialogDup = useCallback((item: EntityItem) => {
+  const onDialogDup = (item: EntityItem) => {
     setCreating(true);
     setSelectedEntityItem({
       id: Math.floor(Math.random() * (MAX_ID - MIN_ID) + MIN_ID),
@@ -228,9 +219,9 @@ const CustomEntities = () => {
       value: item.value
     });
     setDialogOpen(true);
-  }, []);
+  };
 
-  const addEntityItem = useCallback(() => {
+  const addEntityItem = () => {
     setCreating(true);
     setSelectedEntityItem({
       id: Math.floor(Math.random() * (MAX_ID - MIN_ID) + MIN_ID),
@@ -248,30 +239,27 @@ const CustomEntities = () => {
       value: ''
     });
     setDialogOpen(true);
-  }, []);
+  };
 
-  const formatValue = useCallback((value: unknown, uom: number) => {
+  const formatValue = (value: unknown, uom: number) => {
     return value === undefined
       ? ''
       : typeof value === 'number'
         ? new Intl.NumberFormat().format(value) +
           (uom === 0 ? '' : ` ${DeviceValueUOM_s[uom]}`)
         : `${value as string}${uom === 0 ? '' : ` ${DeviceValueUOM_s[uom]}`}`;
-  }, []);
+  };
 
-  const showHex = useCallback((value: number, digit: number) => {
+  const showHex = (value: number, digit: number) => {
     return `0x${value.toString(16).toUpperCase().padStart(digit, '0')}`;
-  }, []);
+  };
 
-  const filteredAndSortedEntities = useMemo(
-    () =>
-      entities
-        ?.filter((ei: EntityItem) => !ei.deleted)
-        .sort((a: EntityItem, b: EntityItem) => a.name.localeCompare(b.name)) ?? [],
-    [entities]
-  );
+  const filteredAndSortedEntities =
+    entities
+      ?.filter((ei: EntityItem) => !ei.deleted)
+      .sort((a: EntityItem, b: EntityItem) => a.name.localeCompare(b.name)) ?? [];
 
-  const renderEntity = useCallback(() => {
+  const renderEntity = () => {
     if (!entities) {
       return (
         <FormLoader onRetry={fetchEntities} errorMessage={error?.message || ''} />
@@ -328,17 +316,7 @@ const CustomEntities = () => {
         )}
       </Table>
     );
-  }, [
-    entities,
-    error,
-    fetchEntities,
-    entity_theme,
-    editEntityItem,
-    LL,
-    filteredAndSortedEntities,
-    showHex,
-    formatValue
-  ]);
+  };
 
   return (
     <SectionContent>

interface/src/app/main/CustomEntitiesDialog.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useEffect, useMemo, useState } from 'react';
+import { useEffect, useState } from 'react';
 
 import AddIcon from '@mui/icons-material/Add';
 import CancelIcon from '@mui/icons-material/Cancel';
@@ -28,7 +28,7 @@ import type { ValidateFieldsError } from 'async-validator';
 import { BlockFormControlLabel, ValidatedTextField } from 'components';
 import { useI18nContext } from 'i18n/i18n-react';
 import { numberValue, updateValue } from 'utils';
-import { validate } from 'validators';
+import { ValidationError, validate } from 'validators';
 
 import { DeviceValueType, DeviceValueTypeNames, DeviceValueUOM_s } from './types';
 import type { EntityItem } from './types';
@@ -68,14 +68,10 @@ const CustomEntitiesDialog = ({
   const { LL } = useI18nContext();
   const [editItem, setEditItem] = useState<EntityItem>(selectedItem);
   const [fieldErrors, setFieldErrors] = useState<ValidateFieldsError>();
-  const updateFormValue = useMemo(
-    () =>
-      updateValue(
-        setEditItem as unknown as React.Dispatch<
-          React.SetStateAction<Record<string, unknown>>
-        >
-      ),
-    []
+  const updateFormValue = updateValue(
+    setEditItem as unknown as React.Dispatch<
+      React.SetStateAction<Record<string, unknown>>
+    >
   );
 
   useEffect(() => {
@@ -105,16 +101,16 @@ const CustomEntitiesDialog = ({
     }
   }, [open, selectedItem]);
 
-  const handleClose = useCallback(
-    (_event: React.SyntheticEvent, reason: 'backdropClick' | 'escapeKeyDown') => {
-      if (reason !== 'backdropClick') {
-        onClose();
-      }
-    },
-    [onClose]
-  );
+  const handleClose = (
+    _event: React.SyntheticEvent,
+    reason: 'backdropClick' | 'escapeKeyDown'
+  ) => {
+    if (reason !== 'backdropClick') {
+      onClose();
+    }
+  };
 
-  const save = useCallback(async () => {
+  const save = async () => {
     try {
       setFieldErrors(undefined);
       await validate(validator, editItem);
@@ -136,29 +132,23 @@ const CustomEntitiesDialog = ({
       }
       onSave(processedItem);
     } catch (error) {
-      setFieldErrors(error as ValidateFieldsError);
+      setFieldErrors((error as ValidationError).fieldErrors);
     }
-  }, [validator, editItem, onSave]);
+  };
 
-  const remove = useCallback(() => {
-    const itemWithDeleted = { ...editItem, deleted: true };
-    onSave(itemWithDeleted);
-  }, [editItem, onSave]);
+  const remove = () => {
+    onSave({ ...editItem, deleted: true });
+  };
 
-  const dup = useCallback(() => {
+  const dup = () => {
     onDup(editItem);
-  }, [editItem, onDup]);
+  };
 
-  // Memoize UOM menu items to avoid recreating on every render
-  const uomMenuItems = useMemo(
-    () =>
-      DeviceValueUOM_s.map((val, i) => (
-        <MenuItem key={val} value={i}>
-          {val}
-        </MenuItem>
-      )),
-    []
-  );
+  const uomMenuItems = DeviceValueUOM_s.map((val, i) => (
+    <MenuItem key={val} value={i}>
+      {val}
+    </MenuItem>
+  ));
 
   return (
     <Dialog sx={dialogStyle} open={open} onClose={handleClose}>
@@ -215,7 +205,7 @@ const CustomEntitiesDialog = ({
                   name="value"
                   label={LL.DEFAULT(0) + ' ' + LL.VALUE(0)}
                   type="string"
-                  value={editItem.value as string}
+                  value={editItem.value}
                   variant="outlined"
                   onChange={updateFormValue}
                   fullWidth
@@ -260,7 +250,7 @@ const CustomEntitiesDialog = ({
                   margin="normal"
                   sx={{ width: '11ch' }}
                   type="string"
-                  value={editItem.device_id as string}
+                  value={editItem.device_id}
                   onChange={updateFormValue}
                   slotProps={{
                     input: {
@@ -280,7 +270,7 @@ const CustomEntitiesDialog = ({
                   margin="normal"
                   sx={{ width: '11ch' }}
                   type="string"
-                  value={editItem.type_id as string}
+                  value={editItem.type_id}
                   onChange={updateFormValue}
                   slotProps={{
                     input: {
@@ -381,7 +371,7 @@ const CustomEntitiesDialog = ({
                     fieldErrors={fieldErrors || {}}
                     name="factor"
                     label={LL.BITMASK()}
-                    value={editItem.factor as string}
+                    value={editItem.factor}
                     sx={{ width: '11ch' }}
                     variant="outlined"
                     onChange={updateFormValue}

interface/src/app/main/Customizations.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useEffect, useMemo, useState } from 'react';
+import { useEffect, useState } from 'react';
 import { useBlocker, useLocation } from 'react-router';
 import { toast } from 'react-toastify';
 
@@ -171,19 +171,17 @@ const Customizations = () => {
     );
   };
 
-  const entities_theme = useMemo(
-    () =>
-      useTheme({
-        Table: `
+  const entities_theme = useTheme({
+    Table: `
       --data-table-library_grid-template-columns: 156px repeat(1, minmax(80px, 1fr)) 45px minmax(45px, auto) minmax(120px, auto);
     `,
-        BaseRow: `
+    BaseRow: `
       font-size: 14px;
       .td {
         height: 32px;
       }
     `,
-        BaseCell: `
+    BaseCell: `
       &:nth-of-type(3) {
         text-align: right;
       }
@@ -194,7 +192,7 @@ const Customizations = () => {
         text-align: right;
       }
     `,
-        HeaderRow: `
+    HeaderRow: `
       text-transform: uppercase;
       background-color: black;
       color: #90CAF9;
@@ -206,7 +204,7 @@ const Customizations = () => {
         text-align: center;
       }
     `,
-        Row: `
+    Row: `
       background-color: #1e1e1e;
       position: relative;
       cursor: pointer;
@@ -222,7 +220,7 @@ const Customizations = () => {
         background-color: #177ac9;
       }
     `,
-        Cell: `
+    Cell: `
       &:nth-of-type(2) {
         padding: 8px;
       }
@@ -236,9 +234,7 @@ const Customizations = () => {
         padding-right: 8px;
       }
     `
-      }),
-    []
-  );
+  });
 
   function hasEntityChanged(de: DeviceEntity) {
     return (
@@ -287,26 +283,23 @@ const Customizations = () => {
     return value as string;
   }
 
-  const isCommand = useCallback((de: DeviceEntity) => {
+  const isCommand = (de: DeviceEntity) => {
     return de.n && de.n[0] === '!';
-  }, []);
+  };
 
-  const formatName = useCallback(
-    (de: DeviceEntity, withShortname: boolean) => {
-      let name: string;
-      if (isCommand(de)) {
-        name = de.t
-          ? `${LL.COMMAND(1)}: ${de.t} ${de.n?.slice(1)}`
-          : `${LL.COMMAND(1)}: ${de.n?.slice(1)}`;
-      } else if (de.cn && de.cn !== '') {
-        name = de.t ? `${de.t} ${de.cn}` : de.cn;
-      } else {
-        name = de.t ? `${de.t} ${de.n}` : de.n || '';
-      }
-      return withShortname ? `${name} ${de.id}` : name;
-    },
-    [LL]
-  );
+  const formatName = (de: DeviceEntity, withShortname: boolean) => {
+    let name: string;
+    if (isCommand(de)) {
+      name = de.t
+        ? `${LL.COMMAND(1)}: ${de.t} ${de.n?.slice(1)}`
+        : `${LL.COMMAND(1)}: ${de.n?.slice(1)}`;
+    } else if (de.cn && de.cn !== '') {
+      name = de.t ? `${de.t} ${de.cn}` : de.cn;
+    } else {
+      name = de.t ? `${de.t} ${de.n}` : de.n || '';
+    }
+    return withShortname ? `${name} ${de.id}` : name;
+  };
 
   const getMaskNumber = (newMask: string[]) => {
     let new_mask = 0;
@@ -336,33 +329,27 @@ const Customizations = () => {
     return new_masks;
   };
 
-  const filter_entity = useCallback(
-    (de: DeviceEntity) =>
-      (de.m & selectedFilters || !selectedFilters) &&
-      formatName(de, true).toLowerCase().includes(search.toLowerCase()),
-    [selectedFilters, search, formatName]
-  );
+  const filter_entity = (de: DeviceEntity) =>
+    (de.m & selectedFilters || !selectedFilters) &&
+    formatName(de, true).toLowerCase().includes(search.toLowerCase());
 
-  const maskDisabled = useCallback(
-    (set: boolean) => {
-      setDeviceEntities((prev) =>
-        prev.map((de) => {
-          if (filter_entity(de)) {
-            const excludeMask =
-              DeviceEntityMask.DV_API_MQTT_EXCLUDE | DeviceEntityMask.DV_WEB_EXCLUDE;
-            return {
-              ...de,
-              m: set ? de.m | excludeMask : de.m & ~excludeMask
-            };
-          }
-          return de;
-        })
-      );
-    },
-    [filter_entity]
-  );
+  const maskDisabled = (set: boolean) => {
+    setDeviceEntities((prev) =>
+      prev.map((de) => {
+        if (filter_entity(de)) {
+          const excludeMask =
+            DeviceEntityMask.DV_API_MQTT_EXCLUDE | DeviceEntityMask.DV_WEB_EXCLUDE;
+          return {
+            ...de,
+            m: set ? de.m | excludeMask : de.m & ~excludeMask
+          };
+        }
+        return de;
+      })
+    );
+  };
 
-  const resetCustomization = useCallback(async () => {
+  const resetCustomization = async () => {
     try {
       await sendResetCustomizations();
       toast.info(LL.CUSTOMIZATIONS_RESTART());
@@ -372,30 +359,27 @@ const Customizations = () => {
       setConfirmReset(false);
       setRestarting(true);
     }
-  }, [sendResetCustomizations, LL]);
+  };
 
   const onDialogClose = () => {
     setDialogOpen(false);
   };
 
-  const updateDeviceEntity = useCallback((updatedItem: DeviceEntity) => {
+  const updateDeviceEntity = (updatedItem: DeviceEntity) => {
     setDeviceEntities(
       (prev) =>
         prev?.map((de) =>
           de.id === updatedItem.id ? { ...de, ...updatedItem } : de
         ) ?? []
     );
-  }, []);
+  };
 
-  const onDialogSave = useCallback(
-    (updatedItem: DeviceEntity) => {
-      setDialogOpen(false);
-      updateDeviceEntity(updatedItem);
-    },
-    [updateDeviceEntity]
-  );
+  const onDialogSave = (updatedItem: DeviceEntity) => {
+    setDialogOpen(false);
+    updateDeviceEntity(updatedItem);
+  };
 
-  const editDeviceEntity = useCallback((de: DeviceEntity) => {
+  const editDeviceEntity = (de: DeviceEntity) => {
     if (de.n === undefined || (de.n && de.n[0] === '!')) {
       return;
     }
@@ -406,9 +390,9 @@ const Customizations = () => {
 
     setSelectedDeviceEntity(de);
     setDialogOpen(true);
-  }, []);
+  };
 
-  const saveCustomization = useCallback(async () => {
+  const saveCustomization = async () => {
     if (!devices || !deviceEntities || selectedDevice === -1) {
       return;
     }
@@ -441,9 +425,9 @@ const Customizations = () => {
       .finally(() => {
         setOriginalSettings(deviceEntities);
       });
-  }, [devices, deviceEntities, selectedDevice, sendCustomizationEntities, LL]);
+  };
 
-  const renameDevice = useCallback(async () => {
+  const renameDevice = async () => {
     await sendDeviceName({
       id: selectedDevice,
       name: selectedDeviceName,
@@ -459,14 +443,7 @@ const Customizations = () => {
         setRename(false);
         await fetchCoreData();
       });
-  }, [
-    selectedDevice,
-    selectedDeviceName,
-    selectedDeviceBrand,
-    sendDeviceName,
-    LL,
-    fetchCoreData
-  ]);
+  };
 
   const renderDeviceList = () => (
     <>
@@ -562,10 +539,7 @@ const Customizations = () => {
     </>
   );
 
-  const filteredEntities = useMemo(
-    () => deviceEntities.filter((de) => filter_entity(de)),
-    [deviceEntities, filter_entity]
-  );
+  const filteredEntities = deviceEntities.filter((de) => filter_entity(de));
 
   const renderDeviceData = () => {
     return (

interface/src/app/main/CustomizationsDialog.tsx

@@ -1,4 +1,4 @@
-import { memo, useCallback, useEffect, useMemo, useState } from 'react';
+import { memo, useEffect, useState } from 'react';
 
 import CancelIcon from '@mui/icons-material/Cancel';
 import CloseIcon from '@mui/icons-material/Close';
@@ -57,23 +57,16 @@ const CustomizationsDialog = ({
   const [editItem, setEditItem] = useState<DeviceEntity>(selectedItem);
   const [error, setError] = useState<boolean>(false);
 
-  const updateFormValue = useMemo(
-    () =>
-      updateValue(
-        setEditItem as unknown as React.Dispatch<
-          React.SetStateAction<Record<string, unknown>>
-        >
-      ),
-    []
+  const updateFormValue = updateValue(
+    setEditItem as unknown as React.Dispatch<
+      React.SetStateAction<Record<string, unknown>>
+    >
   );
 
-  const isWriteableNumber = useMemo(
-    () =>
-      typeof editItem.v === 'number' &&
-      editItem.w &&
-      !(editItem.m & DeviceEntityMask.DV_READONLY),
-    [editItem.v, editItem.w, editItem.m]
-  );
+  const isWriteableNumber =
+    typeof editItem.v === 'number' &&
+    editItem.w &&
+    !(editItem.m & DeviceEntityMask.DV_READONLY);
 
   useEffect(() => {
     if (open) {
@@ -82,16 +75,16 @@ const CustomizationsDialog = ({
     }
   }, [open, selectedItem]);
 
-  const handleClose = useCallback(
-    (_event: React.SyntheticEvent, reason: 'backdropClick' | 'escapeKeyDown') => {
-      if (reason !== 'backdropClick') {
-        onClose();
-      }
-    },
-    [onClose]
-  );
+  const handleClose = (
+    _event: React.SyntheticEvent,
+    reason: 'backdropClick' | 'escapeKeyDown'
+  ) => {
+    if (reason !== 'backdropClick') {
+      onClose();
+    }
+  };
 
-  const save = useCallback(() => {
+  const save = () => {
     if (
       isWriteableNumber &&
       editItem.mi &&
@@ -102,34 +95,31 @@ const CustomizationsDialog = ({
     } else {
       onSave(editItem);
     }
-  }, [isWriteableNumber, editItem, onSave]);
+  };
 
-  const updateDeviceEntity = useCallback((updatedItem: DeviceEntity) => {
+  const updateDeviceEntity = (updatedItem: DeviceEntity) => {
     setEditItem((prev) => ({ ...prev, m: updatedItem.m }));
-  }, []);
-
-  const dialogTitle = useMemo(() => `${LL.EDIT()} ${LL.ENTITY()}`, [LL]);
-
-  const writeableIcon = useMemo(
-    () =>
-      editItem.w ? (
-        <DoneIcon color="success" sx={{ fontSize: ICON_SIZE }} />
-      ) : (
-        <CloseIcon color="error" sx={{ fontSize: ICON_SIZE }} />
-      ),
-    [editItem.w]
-  );
+  };
 
   return (
     <Dialog sx={dialogStyle} open={open} onClose={handleClose}>
-      <DialogTitle>{dialogTitle}</DialogTitle>
+      <DialogTitle>{`${LL.EDIT()} ${LL.ENTITY()}`}</DialogTitle>
       <DialogContent dividers>
         <LabelValue label={LL.ID_OF(LL.ENTITY())} value={editItem.id} />
         <LabelValue
           label={`${LL.DEFAULT(1)} ${LL.ENTITY_NAME(1)}`}
           value={editItem.n}
         />
-        <LabelValue label={LL.WRITEABLE()} value={writeableIcon} />
+        <LabelValue
+          label={LL.WRITEABLE()}
+          value={
+            editItem.w ? (
+              <DoneIcon color="success" sx={{ fontSize: ICON_SIZE }} />
+            ) : (
+              <CloseIcon color="error" sx={{ fontSize: ICON_SIZE }} />
+            )
+          }
+        />
 
         <Box sx={{ mt: 1, mb: 2 }}>
           <EntityMaskToggle onUpdate={updateDeviceEntity} de={editItem} />

interface/src/app/main/Dashboard.tsx

@@ -1,4 +1,4 @@
-import { memo, useCallback, useContext, useEffect, useMemo, useState } from 'react';
+import { memo, useContext, useEffect, useState } from 'react';
 import { IconContext } from 'react-icons/lib';
 import { Link } from 'react-router';
 import { toast } from 'react-toastify';
@@ -77,40 +77,35 @@ const Dashboard = memo(() => {
     }
   );
 
-  const deviceValueDialogSave = useCallback(
-    async (devicevalue: DeviceValue) => {
-      if (!selectedDashboardItem) {
-        return;
-      }
-      const id = selectedDashboardItem.parentNode.id; // this is the parent ID
-      await sendDeviceValue({ id, c: devicevalue.c ?? '', v: devicevalue.v })
-        .then(() => {
-          toast.success(LL.WRITE_CMD_SENT());
-        })
-        .catch((error: Error) => {
-          toast.error(error.message);
-        })
-        .finally(() => {
-          setDeviceValueDialogOpen(false);
-          setSelectedDashboardItem(undefined);
-        });
-    },
-    [selectedDashboardItem, sendDeviceValue, LL]
-  );
+  const deviceValueDialogSave = async (devicevalue: DeviceValue) => {
+    if (!selectedDashboardItem) {
+      return;
+    }
+    const id = selectedDashboardItem.parentNode.id; // this is the parent ID
+    await sendDeviceValue({ id, c: devicevalue.c ?? '', v: devicevalue.v })
+      .then(() => {
+        toast.success(LL.WRITE_CMD_SENT());
+      })
+      .catch((error: Error) => {
+        toast.error(error.message);
+      })
+      .finally(() => {
+        setDeviceValueDialogOpen(false);
+        setSelectedDashboardItem(undefined);
+      });
+  };
 
-  const dashboard_theme = useMemo(
-    () =>
-      useTheme({
-        Table: `
+  const dashboard_theme = useTheme({
+    Table: `
       --data-table-library_grid-template-columns: minmax(80px, auto) 120px 32px;
     `,
-        BaseRow: `
+    BaseRow: `
       font-size: 14px;
       .td {
         height: 28px;
       }
     `,
-        Row: `
+    Row: `
       cursor: pointer;
       background-color: #1e1e1e;
       &:nth-of-type(odd) .td {
@@ -120,7 +115,7 @@ const Dashboard = memo(() => {
         background-color: #177ac9;
       },
     `,
-        BaseCell: `
+    BaseCell: `
       &:nth-of-type(2) {
         text-align: right;
       }
@@ -128,9 +123,7 @@ const Dashboard = memo(() => {
         text-align: right;
       }
     `
-      }),
-    []
-  );
+  });
 
   const tree = useTree(
     { nodes: [...data.nodes] },
@@ -164,79 +157,64 @@ const Dashboard = memo(() => {
     }
   });
 
-  const nodeIds = useMemo(
-    () => data.nodes.map((item: DashboardItem) => item.id),
-    [data.nodes]
-  );
-
   useEffect(() => {
+    const nodeIds = data.nodes.map((item: DashboardItem) => item.id);
     showAll
       ? tree.fns.onAddAll(nodeIds) // expand tree
       : tree.fns.onRemoveAll(); // collapse tree
   }, [parentNodes]);
 
-  const showType = useCallback(
-    (n?: string, t?: number) => {
-      // if we have a name show it
-      if (n) {
-        return n;
+  const showType = (n?: string, t?: number) => {
+    // if we have a name show it
+    if (n) {
+      return n;
+    }
+    if (t) {
+      // otherwise pick translation based on type
+      switch (t) {
+        case DeviceType.CUSTOM:
+          return LL.CUSTOM_ENTITIES(0);
+        case DeviceType.ANALOGSENSOR:
+          return LL.ANALOG_SENSORS();
+        case DeviceType.TEMPERATURESENSOR:
+          return LL.TEMP_SENSORS();
+        case DeviceType.SCHEDULER:
+          return LL.SCHEDULER();
+        default:
+          break;
       }
-      if (t) {
-        // otherwise pick translation based on type
-        switch (t) {
-          case DeviceType.CUSTOM:
-            return LL.CUSTOM_ENTITIES(0);
-          case DeviceType.ANALOGSENSOR:
-            return LL.ANALOG_SENSORS();
-          case DeviceType.TEMPERATURESENSOR:
-            return LL.TEMP_SENSORS();
-          case DeviceType.SCHEDULER:
-            return LL.SCHEDULER();
-          default:
-            break;
-        }
-      }
-      return '';
-    },
-    [LL]
-  );
+    }
+    return '';
+  };
 
-  const showName = useCallback(
-    (di: DashboardItem) => {
-      if (di.id < 100) {
-        // if its a device (parent node) and has entities
-        if (di.nodes?.length) {
-          return (
-            <span style={{ fontSize: '15px' }}>
-              <DeviceIcon type_id={di.t ?? 0} />
-              &nbsp;&nbsp;{showType(di.n, di.t)}
-              <span style={{ color: 'lightblue' }}>&nbsp;({di.nodes?.length})</span>
-            </span>
-          );
-        }
+  const showName = (di: DashboardItem) => {
+    if (di.id < 100) {
+      // if its a device (parent node) and has entities
+      if (di.nodes?.length) {
+        return (
+          <span style={{ fontSize: '15px' }}>
+            <DeviceIcon type_id={di.t ?? 0} />
+            &nbsp;&nbsp;{showType(di.n, di.t)}
+            <span style={{ color: 'lightblue' }}>&nbsp;({di.nodes?.length})</span>
+          </span>
+        );
       }
-      if (di.dv) {
-        return <span>{di.dv.id.slice(2)}</span>;
-      }
-      return null;
-    },
-    [showType]
-  );
+    }
+    if (di.dv) {
+      return <span>{di.dv.id.slice(2)}</span>;
+    }
+    return null;
+  };
 
-  const hasMask = useCallback(
-    (id: string, mask: number) => (parseInt(id.slice(0, 2), 16) & mask) === mask,
-    []
-  );
+  const hasMask = (id: string, mask: number) =>
+    (parseInt(id.slice(0, 2), 16) & mask) === mask;
 
-  const editDashboardValue = useCallback(
-    (di: DashboardItem) => {
-      if (me.admin && di.dv?.c) {
-        setSelectedDashboardItem(di);
-        setDeviceValueDialogOpen(true);
-      }
-    },
-    [me.admin]
-  );
+  const editDashboardValue = (di: DashboardItem) => {
+    if (me.admin && di.dv?.c) {
+      setSelectedDashboardItem(di);
+      setDeviceValueDialogOpen(true);
+    }
+  };
 
   const handleShowAll = (
     _event: React.MouseEvent<HTMLElement>,
@@ -248,10 +226,9 @@ const Dashboard = memo(() => {
     }
   };
 
-  const hasFavEntities = useMemo(
-    () => data.nodes.filter((item: DashboardItem) => item.id <= 90).length,
-    [data.nodes]
-  );
+  const hasFavEntities = data.nodes.filter(
+    (item: DashboardItem) => item.id <= 90
+  ).length;
 
   const renderContent = () => {
     if (!data) {

interface/src/app/main/Devices.tsx

@@ -4,7 +4,6 @@ import {
   useContext,
   useEffect,
   useLayoutEffect,
-  useMemo,
   useState
 } from 'react';
 import { IconContext } from 'react-icons';
@@ -133,21 +132,19 @@ const Devices = memo(() => {
     };
   }, []);
 
-  const leftOffset = useCallback(() => {
+  const leftOffset = () => {
     const devicesWindow = document.getElementById('devices-window');
     if (!devicesWindow) return 0;
     const { left, right } = devicesWindow.getBoundingClientRect();
     if (!left || !right) return 0;
     return left + (right - left < 400 ? 0 : 200);
-  }, []);
+  };
 
-  const common_theme = useMemo(
-    () =>
-      useTheme({
-        BaseRow: `
+  const common_theme = useTheme({
+    BaseRow: `
       font-size: 14px;
     `,
-        HeaderRow: `
+    HeaderRow: `
       text-transform: uppercase;
       background-color: black;
       color: #90CAF9;
@@ -155,7 +152,7 @@ const Devices = memo(() => {
         border-bottom: 1px solid #565656;
       }
     `,
-        Row: `
+    Row: `
       cursor: pointer;
       background-color: #1E1E1E;
       .td {
@@ -165,88 +162,78 @@ const Devices = memo(() => {
         background-color: #177ac9;
       }
     `
-      }),
-    []
-  );
+  });
 
-  const device_theme = useMemo(
-    () =>
-      useTheme([
-        common_theme,
-        {
-          BaseRow: `
-          font-size: 15px;
-          .td {
-           height: 28px;
-          }
-        `,
-          Table: `
-        --data-table-library_grid-template-columns: repeat(1, minmax(0, 1fr)) 130px;
-      `,
-          HeaderRow: `
-        .th {
-          padding: 8px;
-      `,
-          Row: `
-        &:nth-of-type(odd) .td {
-            background-color: #303030;
-        },
-        &:hover .td {
-          background-color: #177ac9;
-        },
-      `
-        }
-      ]),
-    [common_theme]
-  );
-
-  const data_theme = useMemo(
-    () =>
-      useTheme([
-        common_theme,
-        {
-          Table: `
-        --data-table-library_grid-template-columns: minmax(200px, auto) minmax(150px, auto) 40px;
-        height: auto;
-        max-height: 100%;
-        overflow-y: scroll;
-        ::-webkit-scrollbar {
-          display:none;
+  const device_theme = useTheme([
+    common_theme,
+    {
+      BaseRow: `
+        font-size: 15px;
+        .td {
+         height: 28px;
         }
       `,
-          BaseRow: `
-      .td {
-        height: 32px;
-      }
-     `,
-          BaseCell: `
-        &:nth-of-type(1) {
-          border-left: 1px solid #177ac9;
-        },
-        &:nth-of-type(2) {
-          text-align: right;
-        },
-        &:nth-of-type(3) {
-          border-right: 1px solid #177ac9;
-        }
-      `,
-          HeaderRow: `
-        .th {
-          border-top: 1px solid #565656;
-        }
-      `,
-          Row: `
-        &:nth-of-type(odd) .td {
+      Table: `
+      --data-table-library_grid-template-columns: repeat(1, minmax(0, 1fr)) 130px;
+    `,
+      HeaderRow: `
+      .th {
+        padding: 8px;
+    `,
+      Row: `
+      &:nth-of-type(odd) .td {
           background-color: #303030;
-        },
-        &:hover .td {
-          background-color: #177ac9;
+      },
+      &:hover .td {
+        background-color: #177ac9;
+      },
+    `
+    }
+  ]);
+
+  const data_theme = useTheme([
+    common_theme,
+    {
+      Table: `
+      --data-table-library_grid-template-columns: minmax(200px, auto) minmax(150px, auto) 40px;
+      height: auto;
+      max-height: 100%;
+      overflow-y: scroll;
+      ::-webkit-scrollbar {
+        display:none;
       }
-      `
-        }
-      ]),
-    [common_theme]
-  );
+    `,
+      BaseRow: `
+    .td {
+      height: 32px;
+    }
+   `,
+      BaseCell: `
+      &:nth-of-type(1) {
+        border-left: 1px solid #177ac9;
+      },
+      &:nth-of-type(2) {
+        text-align: right;
+      },
+      &:nth-of-type(3) {
+        border-right: 1px solid #177ac9;
+      }
+    `,
+      HeaderRow: `
+      .th {
+        border-top: 1px solid #565656;
+      }
+    `,
+      Row: `
+      &:nth-of-type(odd) .td {
+        background-color: #303030;
+      },
+      &:hover .td {
+        background-color: #177ac9;
+    }
+    `
+    }
+  ]);
 
   const getSortIcon = (state: State, sortKey: unknown) => {
     if (state.sortKey === sortKey && state.reverse) {
@@ -345,10 +332,8 @@ const Devices = memo(() => {
     return sc;
   };
 
-  const hasMask = useCallback(
-    (id: string, mask: number) => (parseInt(id.slice(0, 2), 16) & mask) === mask,
-    []
-  );
+  const hasMask = (id: string, mask: number) =>
+    (parseInt(id.slice(0, 2), 16) & mask) === mask;
 
   const handleDownloadCsv = () => {
     const deviceIndex = coreData.devices.findIndex(
@@ -607,41 +592,35 @@ const Devices = memo(() => {
       return;
     }
 
-    const showDeviceValue = useCallback((dv: DeviceValue) => {
+    const showDeviceValue = (dv: DeviceValue) => {
       setSelectedDeviceValue(dv);
       setDeviceValueDialogOpen(true);
-    }, []);
+    };
 
-    const renderNameCell = useCallback(
-      (dv: DeviceValue) => (
-        <>
-          {dv.id.slice(2)}&nbsp;
-          {hasMask(dv.id, DeviceEntityMask.DV_FAVORITE) && (
-            <StarIcon color="primary" sx={{ fontSize: 12 }} />
-          )}
-          {hasMask(dv.id, DeviceEntityMask.DV_READONLY) && (
-            <EditOffOutlinedIcon color="primary" sx={{ fontSize: 12 }} />
-          )}
-          {hasMask(dv.id, DeviceEntityMask.DV_API_MQTT_EXCLUDE) && (
-            <CommentsDisabledOutlinedIcon color="primary" sx={{ fontSize: 12 }} />
-          )}
-        </>
-      ),
-      [hasMask]
+    const renderNameCell = (dv: DeviceValue) => (
+      <>
+        {dv.id.slice(2)}&nbsp;
+        {hasMask(dv.id, DeviceEntityMask.DV_FAVORITE) && (
+          <StarIcon color="primary" sx={{ fontSize: 12 }} />
+        )}
+        {hasMask(dv.id, DeviceEntityMask.DV_READONLY) && (
+          <EditOffOutlinedIcon color="primary" sx={{ fontSize: 12 }} />
+        )}
+        {hasMask(dv.id, DeviceEntityMask.DV_API_MQTT_EXCLUDE) && (
+          <CommentsDisabledOutlinedIcon color="primary" sx={{ fontSize: 12 }} />
+        )}
+      </>
     );
 
-    const shown_data = useMemo(() => {
-      if (onlyFav) {
-        return deviceData.nodes.filter(
+    const shown_data = onlyFav
+      ? deviceData.nodes.filter(
           (dv: DeviceValue) =>
             hasMask(dv.id, DeviceEntityMask.DV_FAVORITE) &&
             dv.id.slice(2).toLowerCase().includes(search.toLowerCase())
+        )
+      : deviceData.nodes.filter((dv: DeviceValue) =>
+          dv.id.slice(2).toLowerCase().includes(search.toLowerCase())
         );
-      }
-      return deviceData.nodes.filter((dv: DeviceValue) =>
-        dv.id.slice(2).toLowerCase().includes(search.toLowerCase())
-      );
-    }, [deviceData.nodes, onlyFav, search]);
 
     const deviceIndex = coreData.devices.findIndex(
       (d: Device) => d.id === device_select.state.id

interface/src/app/main/DevicesDialog.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useEffect, useMemo, useState } from 'react';
+import { useEffect, useState } from 'react';
 
 import CancelIcon from '@mui/icons-material/Cancel';
 import WarningIcon from '@mui/icons-material/Warning';
@@ -24,7 +24,7 @@ import type { ValidateFieldsError } from 'async-validator';
 import { ValidatedTextField } from 'components';
 import { useI18nContext } from 'i18n/i18n-react';
 import { numberValue, updateValue } from 'utils';
-import { validate } from 'validators';
+import { ValidationError, validate } from 'validators';
 
 import { DeviceValueUOM, DeviceValueUOM_s } from './types';
 import type { DeviceValue } from './types';
@@ -52,7 +52,7 @@ const DevicesDialog = ({
   const [editItem, setEditItem] = useState<DeviceValue>(selectedItem);
   const [fieldErrors, setFieldErrors] = useState<ValidateFieldsError>();
 
-  const updateFormValue = useMemo(() => updateValue(setEditItem), [setEditItem]);
+  const updateFormValue = updateValue(setEditItem);
 
   useEffect(() => {
     if (open) {
@@ -61,36 +61,33 @@ const DevicesDialog = ({
     }
   }, [open, selectedItem]);
 
-  const save = useCallback(async () => {
+  const save = async () => {
     try {
       setFieldErrors(undefined);
       await validate(validator, editItem);
       onSave(editItem);
     } catch (error) {
-      setFieldErrors(error as ValidateFieldsError);
+      setFieldErrors((error as ValidationError).fieldErrors);
     }
-  }, [validator, editItem, onSave]);
+  };
 
-  const setUom = useCallback(
-    (uom?: DeviceValueUOM) => {
-      if (uom === undefined) {
-        return;
-      }
-      switch (uom) {
-        case DeviceValueUOM.HOURS:
-          return LL.HOURS();
-        case DeviceValueUOM.MINUTES:
-          return LL.MINUTES();
-        case DeviceValueUOM.SECONDS:
-          return LL.SECONDS();
-        default:
-          return DeviceValueUOM_s[uom];
-      }
-    },
-    [LL]
-  );
+  const setUom = (uom?: DeviceValueUOM) => {
+    if (uom === undefined) {
+      return;
+    }
+    switch (uom) {
+      case DeviceValueUOM.HOURS:
+        return LL.HOURS();
+      case DeviceValueUOM.MINUTES:
+        return LL.MINUTES();
+      case DeviceValueUOM.SECONDS:
+        return LL.SECONDS();
+      default:
+        return DeviceValueUOM_s[uom];
+    }
+  };
 
-  const showHelperText = useCallback((dv: DeviceValue) => {
+  const showHelperText = (dv: DeviceValue) => {
     if (dv.h) return dv.h;
     if (dv.l) return dv.l.join(' | ');
     if (dv.m !== undefined && dv.x !== undefined) {
@@ -101,26 +98,16 @@ const DevicesDialog = ({
       );
     }
     return undefined;
-  }, []);
+  };
 
-  const isCommand = useMemo(
-    () => selectedItem.v === '' && selectedItem.c,
-    [selectedItem.v, selectedItem.c]
-  );
-
-  const dialogTitle = useMemo(() => {
-    if (isCommand) return LL.RUN_COMMAND();
-    return writeable ? LL.CHANGE_VALUE() : LL.VALUE(0);
-  }, [isCommand, writeable, LL]);
-
-  const buttonLabel = useMemo(() => {
-    return isCommand ? LL.EXECUTE() : LL.UPDATE();
-  }, [isCommand, LL]);
-
-  const helperText = useMemo(
-    () => showHelperText(editItem),
-    [editItem, showHelperText]
-  );
+  const isCommand = selectedItem.v === '' && selectedItem.c;
+  const dialogTitle = isCommand
+    ? LL.RUN_COMMAND()
+    : writeable
+      ? LL.CHANGE_VALUE()
+      : LL.VALUE(0);
+  const buttonLabel = isCommand ? LL.EXECUTE() : LL.UPDATE();
+  const helperText = showHelperText(editItem);
 
   const valueLabel = LL.VALUE(0);
 

interface/src/app/main/EntityMaskToggle.tsx

@@ -1,5 +1,3 @@
-import { useCallback, useMemo } from 'react';
-
 import { ToggleButton, ToggleButtonGroup } from '@mui/material';
 
 import OptionIcon from './OptionIcon';
@@ -11,7 +9,6 @@ interface EntityMaskToggleProps {
   de: DeviceEntity;
 }
 
-// Available mask values
 const MASK_VALUES = [
   DeviceEntityMask.DV_WEB_EXCLUDE, // 1
   DeviceEntityMask.DV_API_MQTT_EXCLUDE, // 2
@@ -20,123 +17,95 @@ const MASK_VALUES = [
   DeviceEntityMask.DV_DELETED // 128
 ];
 
-/**
- * Converts an array of mask strings to a bitmask number
- */
-const getMaskNumber = (newMask: string[]): number => {
-  return newMask.reduce((mask, entry) => mask | Number(entry), 0);
-};
+const getMaskNumber = (newMask: string[]): number =>
+  newMask.reduce((mask, entry) => mask | Number(entry), 0);
 
-/**
- * Converts a bitmask number to an array of mask strings
- */
-const getMaskString = (mask: number): string[] => {
-  return MASK_VALUES.filter((value) => (mask & value) === value).map((value) =>
+const getMaskString = (mask: number): string[] =>
+  MASK_VALUES.filter((value) => (mask & value) === value).map((value) =>
     String(value)
   );
-};
 
-/**
- * Checks if a specific mask bit is set
- */
 const hasMask = (mask: number, flag: number): boolean => (mask & flag) === flag;
 
 const EntityMaskToggle = ({ onUpdate, de }: EntityMaskToggleProps) => {
-  const handleChange = useCallback(
-    (_event: unknown, mask: string[]) => {
-      // Convert selected masks to a number
-      const newMask = getMaskNumber(mask);
-      const updatedDe = { ...de };
+  const handleChange = (_event: unknown, mask: string[]) => {
+    const newMask = getMaskNumber(mask);
+    const updatedDe = { ...de };
 
-      // Apply business logic for mask interactions
-      // If entity has no name and is set to readonly, also exclude from web
-      if (updatedDe.n === '' && hasMask(newMask, DeviceEntityMask.DV_READONLY)) {
-        updatedDe.m = newMask | DeviceEntityMask.DV_WEB_EXCLUDE;
-      } else {
-        updatedDe.m = newMask;
-      }
+    // If entity has no name and is set to readonly, also exclude from web
+    if (updatedDe.n === '' && hasMask(newMask, DeviceEntityMask.DV_READONLY)) {
+      updatedDe.m = newMask | DeviceEntityMask.DV_WEB_EXCLUDE;
+    } else {
+      updatedDe.m = newMask;
+    }
 
-      // If excluded from web, cannot be favorite
-      if (hasMask(updatedDe.m, DeviceEntityMask.DV_WEB_EXCLUDE)) {
-        updatedDe.m = updatedDe.m & ~DeviceEntityMask.DV_FAVORITE;
-      }
+    // If excluded from web, cannot be favorite
+    if (hasMask(updatedDe.m, DeviceEntityMask.DV_WEB_EXCLUDE)) {
+      updatedDe.m = updatedDe.m & ~DeviceEntityMask.DV_FAVORITE;
+    }
 
-      onUpdate(updatedDe);
-    },
-    [de, onUpdate]
-  );
-
-  // Memoize mask string value
-  const maskStringValue = useMemo(() => getMaskString(de.m), [de.m]);
-
-  // Memoize disabled states
-  const isFavoriteDisabled = useMemo(
-    () =>
-      hasMask(de.m, DeviceEntityMask.DV_WEB_EXCLUDE | DeviceEntityMask.DV_DELETED) ||
-      de.n === undefined,
-    [de.m, de.n]
-  );
-
-  const isReadonlyDisabled = useMemo(
-    () =>
-      !de.w ||
-      hasMask(de.m, DeviceEntityMask.DV_WEB_EXCLUDE | DeviceEntityMask.DV_FAVORITE),
-    [de.w, de.m]
-  );
-
-  const isApiMqttExcludeDisabled = useMemo(
-    () => de.n === '' || hasMask(de.m, DeviceEntityMask.DV_DELETED),
-    [de.n, de.m]
-  );
-
-  const isWebExcludeDisabled = useMemo(
-    () => de.n === undefined || hasMask(de.m, DeviceEntityMask.DV_DELETED),
-    [de.n, de.m]
-  );
-
-  // Memoize mask flag checks
-  const isFavoriteSet = useMemo(
-    () => hasMask(de.m, DeviceEntityMask.DV_FAVORITE),
-    [de.m]
-  );
-  const isReadonlySet = useMemo(
-    () => hasMask(de.m, DeviceEntityMask.DV_READONLY),
-    [de.m]
-  );
-  const isApiMqttExcludeSet = useMemo(
-    () => hasMask(de.m, DeviceEntityMask.DV_API_MQTT_EXCLUDE),
-    [de.m]
-  );
-  const isWebExcludeSet = useMemo(
-    () => hasMask(de.m, DeviceEntityMask.DV_WEB_EXCLUDE),
-    [de.m]
-  );
-  const isDeletedSet = useMemo(
-    () => hasMask(de.m, DeviceEntityMask.DV_DELETED),
-    [de.m]
-  );
+    onUpdate(updatedDe);
+  };
 
   return (
     <ToggleButtonGroup
       size="small"
       color="secondary"
-      value={maskStringValue}
+      value={getMaskString(de.m)}
       onChange={handleChange}
     >
-      <ToggleButton value="8" disabled={isFavoriteDisabled}>
-        <OptionIcon type="favorite" isSet={isFavoriteSet} />
+      <ToggleButton
+        value="8"
+        disabled={
+          hasMask(
+            de.m,
+            DeviceEntityMask.DV_WEB_EXCLUDE | DeviceEntityMask.DV_DELETED
+          ) || de.n === undefined
+        }
+      >
+        <OptionIcon
+          type="favorite"
+          isSet={hasMask(de.m, DeviceEntityMask.DV_FAVORITE)}
+        />
       </ToggleButton>
-      <ToggleButton value="4" disabled={isReadonlyDisabled}>
-        <OptionIcon type="readonly" isSet={isReadonlySet} />
+      <ToggleButton
+        value="4"
+        disabled={
+          !de.w ||
+          hasMask(
+            de.m,
+            DeviceEntityMask.DV_WEB_EXCLUDE | DeviceEntityMask.DV_FAVORITE
+          )
+        }
+      >
+        <OptionIcon
+          type="readonly"
+          isSet={hasMask(de.m, DeviceEntityMask.DV_READONLY)}
+        />
       </ToggleButton>
-      <ToggleButton value="2" disabled={isApiMqttExcludeDisabled}>
-        <OptionIcon type="api_mqtt_exclude" isSet={isApiMqttExcludeSet} />
+      <ToggleButton
+        value="2"
+        disabled={de.n === '' || hasMask(de.m, DeviceEntityMask.DV_DELETED)}
+      >
+        <OptionIcon
+          type="api_mqtt_exclude"
+          isSet={hasMask(de.m, DeviceEntityMask.DV_API_MQTT_EXCLUDE)}
+        />
       </ToggleButton>
-      <ToggleButton value="1" disabled={isWebExcludeDisabled}>
-        <OptionIcon type="web_exclude" isSet={isWebExcludeSet} />
+      <ToggleButton
+        value="1"
+        disabled={de.n === undefined || hasMask(de.m, DeviceEntityMask.DV_DELETED)}
+      >
+        <OptionIcon
+          type="web_exclude"
+          isSet={hasMask(de.m, DeviceEntityMask.DV_WEB_EXCLUDE)}
+        />
       </ToggleButton>
       <ToggleButton value="128">
-        <OptionIcon type="deleted" isSet={isDeletedSet} />
+        <OptionIcon
+          type="deleted"
+          isSet={hasMask(de.m, DeviceEntityMask.DV_DELETED)}
+        />
       </ToggleButton>
     </ToggleButtonGroup>
   );

interface/src/app/main/Help.tsx

@@ -1,4 +1,4 @@
-import { memo, useCallback, useContext, useMemo, useState } from 'react';
+import { memo, useContext, useState } from 'react';
 import type { ReactElement } from 'react';
 import { toast } from 'react-toastify';
 
@@ -60,6 +60,8 @@ const AVATAR_STYLES: SxProps<Theme> = {
   bgcolor: '#72caf9'
 };
 
+const SYSTEM_INFO_API: APIcall = { device: 'system', cmd: 'info', id: 0 };
+
 const HelpComponent = () => {
   const { LL } = useI18nContext();
   useLayoutTitle(LL.HELP());
@@ -72,12 +74,7 @@ const HelpComponent = () => {
   });
   const [imgError, setImgError] = useState<boolean>(false);
 
-  const getCustomSupportMethod = useMemo(
-    () => callAction({ action: 'getCustomSupport' }),
-    []
-  );
-
-  useRequest(getCustomSupportMethod).onSuccess((event) => {
+  useRequest(callAction({ action: 'getCustomSupport' })).onSuccess((event) => {
     if (event?.data && Object.keys(event.data).length !== 0) {
       const { Support } = event.data as {
         Support: { img_url?: string; html?: string[] };
@@ -100,47 +97,26 @@ const HelpComponent = () => {
       toast.error(String(error.error?.message || 'An error occurred'));
     });
 
-  // Optimize API call memoization
-  const apiCall = useMemo(() => ({ device: 'system', cmd: 'info', id: 0 }), []);
+  const helpLinks: HelpLink[] = [
+    {
+      href: 'https://emsesp.org',
+      icon: <MenuBookIcon />,
+      label: () => LL.HELP_INFORMATION_1()
+    },
+    {
+      href: 'https://discord.gg/GP9DPSgeJq',
+      icon: <CommentIcon />,
+      label: () => LL.HELP_INFORMATION_2()
+    },
+    {
+      href: 'https://github.com/emsesp/EMS-ESP32/issues/new/choose',
+      icon: <GitHubIcon />,
+      label: () => LL.HELP_INFORMATION_3()
+    }
+  ];
 
-  const handleDownloadSystemInfo = useCallback(() => {
-    void sendAPI(apiCall);
-  }, [sendAPI, apiCall]);
-
-  const handleImageError = useCallback(() => {
-    setImgError(true);
-  }, []);
-
-  // Memoize help links to prevent recreation on every render
-  const helpLinks: HelpLink[] = useMemo(
-    () => [
-      {
-        href: 'https://emsesp.org',
-        icon: <MenuBookIcon />,
-        label: () => LL.HELP_INFORMATION_1()
-      },
-      {
-        href: 'https://discord.gg/GP9DPSgeJq',
-        icon: <CommentIcon />,
-        label: () => LL.HELP_INFORMATION_2()
-      },
-      {
-        href: 'https://github.com/emsesp/EMS-ESP32/issues/new/choose',
-        icon: <GitHubIcon />,
-        label: () => LL.HELP_INFORMATION_3()
-      }
-    ],
-    [LL]
-  );
-
-  const isAdmin = useMemo(() => me?.admin ?? false, [me?.admin]);
-
-  // Memoize image source computation
-  const imageSrc = useMemo(
-    () =>
-      imgError || !customSupport.img_url ? DEFAULT_IMAGE_URL : customSupport.img_url,
-    [imgError, customSupport.img_url]
-  );
+  const imageSrc =
+    imgError || !customSupport.img_url ? DEFAULT_IMAGE_URL : customSupport.img_url;
 
   return (
     <SectionContent>
@@ -157,13 +133,13 @@ const HelpComponent = () => {
             component="img"
             referrerPolicy="no-referrer"
             sx={IMAGE_STYLES}
-            onError={handleImageError}
+            onError={() => setImgError(true)}
             src={imageSrc}
           />
         </Stack>
       )}
 
-      {isAdmin && (
+      {me?.admin && (
         <List>
           {helpLinks.map(({ href, icon, label }) => (
             <ListItem key={href}>
@@ -191,7 +167,7 @@ const HelpComponent = () => {
           startIcon={<DownloadIcon />}
           variant="outlined"
           color="primary"
-          onClick={handleDownloadSystemInfo}
+          onClick={() => void sendAPI(SYSTEM_INFO_API)}
         >
           {LL.SUPPORT_INFORMATION(0)}
         </Button>
@@ -214,7 +190,6 @@ const HelpComponent = () => {
   );
 };
 
-// Memoize the component to prevent unnecessary re-renders
 const Help = memo(HelpComponent);
 
 export default Help;

interface/src/app/main/Modules.tsx

@@ -1,4 +1,4 @@
-import { memo, useCallback, useMemo, useState } from 'react';
+import { memo, useState } from 'react';
 import { useBlocker } from 'react-router';
 import { toast } from 'react-toastify';
 
@@ -69,58 +69,53 @@ const Modules = () => {
     }
   );
 
-  const modules_theme = useTheme(
-    useMemo(
-      () => ({
-        Table: `
-          --data-table-library_grid-template-columns: 48px 180px 120px 100px repeat(1, minmax(160px, 1fr)) 180px;
-        `,
-        BaseRow: `
-          font-size: 14px;
-          .td {
-            height: 32px;
-          }
-        `,
-        BaseCell: `
-          &:nth-of-type(1) {
-            text-align: center;
-          }
-        `,
-        HeaderRow: `
-          text-transform: uppercase;
-          background-color: black;
-          color: #90CAF9;
-          .th {
-            border-bottom: 1px solid #565656;
-            height: 36px;
-          }
-        `,
-        Row: `
-          background-color: #1e1e1e;
-          position: relative;
-          cursor: pointer;
-          .td {
-            border-top: 1px solid #565656;
-            border-bottom: 1px solid #565656;
-          }
-          &:hover .td {
-            border-top: 1px solid #177ac9;
-            border-bottom: 1px solid #177ac9;
-          }
-          &:nth-of-type(odd) .td {
-            background-color: #303030;
-          }
-        `
-      }),
-      []
-    )
-  );
+  const modules_theme = useTheme({
+    Table: `
+      --data-table-library_grid-template-columns: 48px 180px 120px 100px repeat(1, minmax(160px, 1fr)) 180px;
+    `,
+    BaseRow: `
+      font-size: 14px;
+      .td {
+        height: 32px;
+      }
+    `,
+    BaseCell: `
+      &:nth-of-type(1) {
+        text-align: center;
+      }
+    `,
+    HeaderRow: `
+      text-transform: uppercase;
+      background-color: black;
+      color: #90CAF9;
+      .th {
+        border-bottom: 1px solid #565656;
+        height: 36px;
+      }
+    `,
+    Row: `
+      background-color: #1e1e1e;
+      position: relative;
+      cursor: pointer;
+      .td {
+        border-top: 1px solid #565656;
+        border-bottom: 1px solid #565656;
+      }
+      &:hover .td {
+        border-top: 1px solid #177ac9;
+        border-bottom: 1px solid #177ac9;
+      }
+      &:nth-of-type(odd) .td {
+        background-color: #303030;
+      }
+    `
+  });
 
-  const onDialogClose = useCallback(() => {
+  const onDialogClose = () => {
     setDialogOpen(false);
-  }, []);
+  };
 
-  const updateModuleItem = useCallback((updatedItem: ModuleItem) => {
+  const updateModuleItem = (updatedItem: ModuleItem) => {
     void updateState(readModules(), (data: ModuleItem[]) => {
       const new_data = data.map((mi) =>
         mi.id === updatedItem.id ? { ...mi, ...updatedItem } : mi
@@ -128,28 +123,25 @@ const Modules = () => {
       setNumChanges(new_data.filter(hasModulesChanged).length);
       return new_data;
     });
-  }, []);
+  };
 
-  const onDialogSave = useCallback(
-    (updatedItem: ModuleItem) => {
-      setDialogOpen(false);
-      updateModuleItem(updatedItem);
-    },
-    [updateModuleItem]
-  );
+  const onDialogSave = (updatedItem: ModuleItem) => {
+    setDialogOpen(false);
+    updateModuleItem(updatedItem);
+  };
 
-  const editModuleItem = useCallback((mi: ModuleItem) => {
+  const editModuleItem = (mi: ModuleItem) => {
     setSelectedModuleItem(mi);
     setDialogOpen(true);
-  }, []);
+  };
 
-  const onCancel = useCallback(async () => {
+  const onCancel = async () => {
     await fetchModules().then(() => {
       setNumChanges(0);
     });
-  }, [fetchModules]);
+  };
 
-  const saveModules = useCallback(async () => {
+  const saveModules = async () => {
     try {
       await Promise.all(
         modules.map((condensed_mi: ModuleItem) =>
@@ -167,9 +159,9 @@ const Modules = () => {
       await fetchModules();
       setNumChanges(0);
     }
-  }, [modules, updateModules, LL, fetchModules]);
+  };
 
-  const content = useMemo(() => {
+  const renderContent = () => {
     if (!modules) {
       return (
         <FormLoader onRetry={fetchModules} errorMessage={error?.message || ''} />
@@ -262,22 +254,12 @@ const Modules = () => {
         </Box>
       </>
     );
-  }, [
-    modules,
-    fetchModules,
-    error,
-    modules_theme,
-    editModuleItem,
-    LL,
-    numChanges,
-    onCancel,
-    saveModules
-  ]);
+  };
 
   return (
     <SectionContent>
       {blocker ? <BlockNavigation blocker={blocker} /> : null}
-      {content}
+      {renderContent()}
       {selectedModuleItem && (
         <ModulesDialog
           open={dialogOpen}

interface/src/app/main/ModulesDialog.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useEffect, useMemo, useState } from 'react';
+import { useEffect, useState } from 'react';
 
 import CancelIcon from '@mui/icons-material/Cancel';
 import DoneIcon from '@mui/icons-material/Done';
@@ -37,14 +37,10 @@ const ModulesDialog = ({
   const { LL } = useI18nContext();
   const [editItem, setEditItem] = useState<ModuleItem>(selectedItem);
 
-  const updateFormValue = useMemo(
-    () =>
-      updateValue(
-        setEditItem as unknown as React.Dispatch<
-          React.SetStateAction<Record<string, unknown>>
-        >
-      ),
-    []
+  const updateFormValue = updateValue(
+    setEditItem as unknown as React.Dispatch<
+      React.SetStateAction<Record<string, unknown>>
+    >
   );
 
   // Sync form state when dialog opens or selected item changes
@@ -54,18 +50,13 @@ const ModulesDialog = ({
     }
   }, [open, selectedItem]);
 
-  const handleSave = useCallback(() => {
+  const handleSave = () => {
     onSave(editItem);
-  }, [editItem, onSave]);
-
-  const dialogTitle = useMemo(
-    () => `${LL.EDIT()} ${editItem.key}`,
-    [LL, editItem.key]
-  );
+  };
 
   return (
     <Dialog sx={dialogStyle} fullWidth maxWidth="xs" open={open} onClose={onClose}>
-      <DialogTitle>{dialogTitle}</DialogTitle>
+      <DialogTitle>{`${LL.EDIT()} ${editItem.key}`}</DialogTitle>
       <DialogContent dividers>
         <Grid container>
           <BlockFormControlLabel

interface/src/app/main/Scheduler.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useEffect, useMemo, useState } from 'react';
+import { useEffect, useState } from 'react';
 import { useBlocker } from 'react-router';
 import { toast } from 'react-toastify';
 
@@ -132,7 +132,7 @@ const Scheduler = () => {
     }
   );
 
-  const hasScheduleChanged = useCallback((si: ScheduleItem) => {
+  const hasScheduleChanged = (si: ScheduleItem) => {
     return (
       si.id !== si.o_id ||
       (si.name || '') !== (si.o_name || '') ||
@@ -143,15 +143,13 @@ const Scheduler = () => {
       si.cmd !== si.o_cmd ||
       si.value !== si.o_value
     );
-  }, []);
+  };
 
-  const intervalCallback = useCallback(() => {
+  useInterval(() => {
     if (numChanges === 0) {
       void fetchSchedule();
     }
-  }, [numChanges, fetchSchedule]);
-
-  useInterval(intervalCallback, INTERVAL_DELAY);
+  }, INTERVAL_DELAY);
 
   useEffect(() => {
     const formatter = new Intl.DateTimeFormat(locale, {
@@ -169,7 +167,7 @@ const Scheduler = () => {
 
   const schedule_theme = useTheme(scheduleTheme);
 
-  const saveSchedule = useCallback(async () => {
+  const saveSchedule = async () => {
     try {
       await updateSchedule({
         schedule: schedule
@@ -192,46 +190,43 @@ const Scheduler = () => {
       await fetchSchedule();
       setNumChanges(0);
     }
-  }, [LL, schedule, updateSchedule, fetchSchedule]);
+  };
 
-  const editScheduleItem = useCallback((si: ScheduleItem) => {
+  const editScheduleItem = (si: ScheduleItem) => {
     setCreating(false);
     setSelectedScheduleItem(si);
     setDialogOpen(true);
     if (si.o_name === undefined) {
       si.o_name = si.name;
     }
-  }, []);
+  };
 
-  const onDialogClose = useCallback(() => {
+  const onDialogClose = () => {
     setDialogOpen(false);
-  }, []);
+  };
 
-  const onDialogCancel = useCallback(async () => {
+  const onDialogCancel = async () => {
     await fetchSchedule().then(() => {
       setNumChanges(0);
     });
-  }, [fetchSchedule]);
+  };
 
-  const onDialogSave = useCallback(
-    (updatedItem: ScheduleItem) => {
-      setDialogOpen(false);
-      void updateState(readSchedule(), (data: ScheduleItem[]) => {
-        const new_data = creating
-          ? [...data, updatedItem]
-          : data.map((si) =>
-              si.id === updatedItem.id ? { ...si, ...updatedItem } : si
-            );
+  const onDialogSave = (updatedItem: ScheduleItem) => {
+    setDialogOpen(false);
+    void updateState(readSchedule(), (data: ScheduleItem[]) => {
+      const new_data = creating
+        ? [...data, updatedItem]
+        : data.map((si) =>
+            si.id === updatedItem.id ? { ...si, ...updatedItem } : si
+          );
 
-        setNumChanges(new_data.filter((si) => hasScheduleChanged(si)).length);
+      setNumChanges(new_data.filter((si) => hasScheduleChanged(si)).length);
 
-        return new_data;
-      });
-    },
-    [creating, hasScheduleChanged]
-  );
+      return new_data;
+    });
+  };
 
-  const addScheduleItem = useCallback(() => {
+  const addScheduleItem = () => {
     setCreating(true);
     const newItem: ScheduleItem = {
       id: Math.floor(Math.random() * (MAX_ID - MIN_ID) + MIN_ID),
@@ -239,36 +234,29 @@ const Scheduler = () => {
     };
     setSelectedScheduleItem(newItem);
     setDialogOpen(true);
-  }, []);
+  };
 
-  const filteredAndSortedSchedule = useMemo(
-    () =>
-      schedule
-        .filter((si: ScheduleItem) => !si.deleted)
-        .sort((a: ScheduleItem, b: ScheduleItem) => a.flags - b.flags),
-    [schedule]
-  );
+  const filteredAndSortedSchedule = schedule
+    .filter((si: ScheduleItem) => !si.deleted)
+    .sort((a: ScheduleItem, b: ScheduleItem) => a.flags - b.flags);
 
-  const dayBox = useCallback(
-    (si: ScheduleItem, flag: number) => {
-      const dayIndex = Math.log(flag) / LOG_2;
-      const isActive = (si.flags & flag) === flag;
+  const dayBox = (si: ScheduleItem, flag: number) => {
+    const dayIndex = Math.log(flag) / LOG_2;
+    const isActive = (si.flags & flag) === flag;
 
-      return (
-        <>
-          <Box>
-            <Typography sx={{ fontSize: 11 }} color={isActive ? 'primary' : 'grey'}>
-              {dow[dayIndex]}
-            </Typography>
-          </Box>
-          <Divider orientation="vertical" flexItem />
-        </>
-      );
-    },
-    [dow]
-  );
+    return (
+      <>
+        <Box>
+          <Typography sx={{ fontSize: 11 }} color={isActive ? 'primary' : 'grey'}>
+            {dow[dayIndex]}
+          </Typography>
+        </Box>
+        <Divider orientation="vertical" flexItem />
+      </>
+    );
+  };
 
-  const scheduleType = useCallback((si: ScheduleItem) => {
+  const scheduleType = (si: ScheduleItem) => {
     const label = scheduleTypeLabels[si.flags];
 
     return (
@@ -278,9 +266,9 @@ const Scheduler = () => {
         </Typography>
       </Box>
     );
-  }, []);
+  };
 
-  const renderSchedule = useCallback(() => {
+  const renderSchedule = () => {
     if (!schedule) {
       return (
         <FormLoader onRetry={fetchSchedule} errorMessage={error?.message || ''} />
@@ -343,17 +331,7 @@ const Scheduler = () => {
         )}
       </Table>
     );
-  }, [
-    schedule,
-    error,
-    fetchSchedule,
-    filteredAndSortedSchedule,
-    schedule_theme,
-    editScheduleItem,
-    LL,
-    dayBox,
-    scheduleType
-  ]);
+  };
 
   return (
     <SectionContent>

interface/src/app/main/SchedulerDialog.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useEffect, useMemo, useState } from 'react';
+import { useEffect, useState } from 'react';
 
 import AddIcon from '@mui/icons-material/Add';
 import CancelIcon from '@mui/icons-material/Cancel';
@@ -26,7 +26,7 @@ import type { ValidateFieldsError } from 'async-validator';
 import { BlockFormControlLabel, ValidatedTextField } from 'components';
 import { useI18nContext } from 'i18n/i18n-react';
 import { updateValue } from 'utils';
-import { validate } from 'validators';
+import { ValidationError, validate } from 'validators';
 
 import { ScheduleFlag } from './types';
 import type { ScheduleItem } from './types';
@@ -60,6 +60,12 @@ const FLAG_VALUES = [
   ScheduleFlag.SCHEDULE_SAT
 ] as const;
 
+const getFlagDOWnumber = (flags: string[]) =>
+  flags.reduce((acc, flag) => acc | Number(flag), 0) & FLAG_MASK_127;
+
+const getFlagDOWstring = (f: number) =>
+  FLAG_VALUES.filter((flag) => (f & flag) === flag).map((flag) => String(flag));
+
 interface SchedulerDialogProps {
   open: boolean;
   creating: boolean;
@@ -84,14 +90,10 @@ const SchedulerDialog = ({
   const [fieldErrors, setFieldErrors] = useState<ValidateFieldsError>();
   const [scheduleType, setScheduleType] = useState<ScheduleFlag>();
 
-  const updateFormValue = useMemo(
-    () =>
-      updateValue(
-        setEditItem as unknown as React.Dispatch<
-          React.SetStateAction<Record<string, unknown>>
-        >
-      ),
-    []
+  const updateFormValue = updateValue(
+    setEditItem as unknown as React.Dispatch<
+      React.SetStateAction<Record<string, unknown>>
+    >
   );
 
   useEffect(() => {
@@ -112,129 +114,95 @@ const SchedulerDialog = ({
     }
   }, [open, selectedItem]);
 
-  // Helper function to handle save operations
-  const handleSave = useCallback(
-    async (itemToSave: ScheduleItem) => {
-      try {
-        setFieldErrors(undefined);
-        await validate(validator, itemToSave);
-        onSave(itemToSave);
-      } catch (error) {
-        setFieldErrors(error as ValidateFieldsError);
-      }
-    },
-    [validator, onSave]
-  );
-
-  const save = useCallback(async () => {
-    await handleSave(editItem);
-  }, [editItem, handleSave]);
-
-  const saveandactivate = useCallback(async () => {
-    await handleSave({ ...editItem, active: true });
-  }, [editItem, handleSave]);
-
-  const remove = useCallback(() => {
-    onSave({ ...editItem, deleted: true });
-  }, [editItem, onSave]);
-
-  // Optimize DOW flag conversion
-  const getFlagDOWnumber = useCallback((flags: string[]) => {
-    return flags.reduce((acc, flag) => acc | Number(flag), 0) & FLAG_MASK_127;
-  }, []);
-
-  const getFlagDOWstring = useCallback((f: number) => {
-    return FLAG_VALUES.filter((flag) => (f & flag) === flag).map((flag) =>
-      String(flag)
-    );
-  }, []);
-
-  // Day of week display component
-  const DayOfWeekButton = useCallback(
-    (flag: number) => {
-      const dayIndex = Math.log2(flag);
-      const isSelected = (editItem.flags & flag) === flag;
-      return (
-        <Typography
-          sx={{ fontSize: TYPOGRAPHY_FONT_SIZE }}
-          color={isSelected ? 'primary' : 'grey'}
-        >
-          {dow[dayIndex]}
-        </Typography>
-      );
-    },
-    [editItem.flags, dow]
-  );
-
-  const handleClose = useCallback(
-    (_event: React.SyntheticEvent, reason: 'backdropClick' | 'escapeKeyDown') => {
-      if (reason !== 'backdropClick') {
-        onClose();
-      }
-    },
-    [onClose]
-  );
-
-  const handleScheduleTypeChange = useCallback(
-    (_event: React.SyntheticEvent<HTMLElement>, flag: ScheduleFlag | null) => {
-      if (flag !== null) {
-        setFieldErrors(undefined); // clear any validation errors
-        setScheduleType(flag);
-        // wipe the time field when changing the schedule type
-        // set the flags based on type
-        const newFlags = flag === ScheduleFlag.SCHEDULE_DAY ? FLAG_ALL_DAYS : flag;
-        setEditItem((prev) => ({ ...prev, time: '', flags: newFlags }));
-      }
-    },
-    []
-  );
-
-  const handleDOWChange = useCallback(
-    (_event: React.SyntheticEvent<HTMLElement>, flags: string[]) => {
-      const newFlags =
-        getFlagDOWnumber(flags) === 0 ? FLAG_ALL_DAYS : getFlagDOWnumber(flags);
-      setEditItem((prev) => ({ ...prev, flags: newFlags }));
-    },
-    [getFlagDOWnumber]
-  );
-
-  // Memoize derived values
-  const isDaySchedule = useMemo(
-    () => scheduleType === ScheduleFlag.SCHEDULE_DAY,
-    [scheduleType]
-  );
-  const isTimerSchedule = useMemo(
-    () => scheduleType === ScheduleFlag.SCHEDULE_TIMER,
-    [scheduleType]
-  );
-  const isImmediateSchedule = useMemo(
-    () => scheduleType === ScheduleFlag.SCHEDULE_IMMEDIATE,
-    [scheduleType]
-  );
-  const needsTimeField = useMemo(
-    () => isDaySchedule || isTimerSchedule,
-    [isDaySchedule, isTimerSchedule]
-  );
-
-  const dowFlags = useMemo(
-    () => getFlagDOWstring(editItem.flags),
-    [editItem.flags, getFlagDOWstring]
-  );
-
-  const timeFieldValue = useMemo(() => {
-    if (needsTimeField) {
-      return editItem.time === '' ? DEFAULT_TIME : editItem.time;
+  const handleSave = async (itemToSave: ScheduleItem) => {
+    try {
+      setFieldErrors(undefined);
+      await validate(validator, itemToSave);
+      onSave(itemToSave);
+    } catch (error) {
+      setFieldErrors((error as ValidationError).fieldErrors);
     }
-    return editItem.time === DEFAULT_TIME ? '' : editItem.time;
-  }, [editItem.time, needsTimeField]);
+  };
 
-  const timeFieldLabel = useMemo(() => {
+  const save = async () => {
+    await handleSave(editItem);
+  };
+
+  const saveandactivate = async () => {
+    await handleSave({ ...editItem, active: true });
+  };
+
+  const remove = () => {
+    onSave({ ...editItem, deleted: true });
+  };
+
+  const DayOfWeekButton = (flag: number) => {
+    const dayIndex = Math.log2(flag);
+    const isSelected = (editItem.flags & flag) === flag;
+    return (
+      <Typography
+        sx={{ fontSize: TYPOGRAPHY_FONT_SIZE }}
+        color={isSelected ? 'primary' : 'grey'}
+      >
+        {dow[dayIndex]}
+      </Typography>
+    );
+  };
+
+  const handleClose = (
+    _event: React.SyntheticEvent,
+    reason: 'backdropClick' | 'escapeKeyDown'
+  ) => {
+    if (reason !== 'backdropClick') {
+      onClose();
+    }
+  };
+
+  const handleScheduleTypeChange = (
+    _event: React.SyntheticEvent<HTMLElement>,
+    flag: ScheduleFlag | null
+  ) => {
+    if (flag !== null) {
+      setFieldErrors(undefined); // clear any validation errors
+      setScheduleType(flag);
+      // wipe the time field when changing the schedule type
+      // set the flags based on type
+      const newFlags = flag === ScheduleFlag.SCHEDULE_DAY ? FLAG_ALL_DAYS : flag;
+      setEditItem((prev) => ({ ...prev, time: '', flags: newFlags }));
+    }
+  };
+
+  const handleDOWChange = (
+    _event: React.SyntheticEvent<HTMLElement>,
+    flags: string[]
+  ) => {
+    const newFlags =
+      getFlagDOWnumber(flags) === 0 ? FLAG_ALL_DAYS : getFlagDOWnumber(flags);
+    setEditItem((prev) => ({ ...prev, flags: newFlags }));
+  };
+
+  const isDaySchedule = scheduleType === ScheduleFlag.SCHEDULE_DAY;
+  const isTimerSchedule = scheduleType === ScheduleFlag.SCHEDULE_TIMER;
+  const isImmediateSchedule = scheduleType === ScheduleFlag.SCHEDULE_IMMEDIATE;
+  const needsTimeField = isDaySchedule || isTimerSchedule;
+
+  const dowFlags = getFlagDOWstring(editItem.flags);
+
+  const timeFieldValue = needsTimeField
+    ? editItem.time === ''
+      ? DEFAULT_TIME
+      : editItem.time
+    : editItem.time === DEFAULT_TIME
+      ? ''
+      : editItem.time;
+
+  const timeFieldLabel = (() => {
     if (scheduleType === ScheduleFlag.SCHEDULE_TIMER) return LL.TIMER(1);
     if (scheduleType === ScheduleFlag.SCHEDULE_CONDITION) return LL.CONDITION();
     if (scheduleType === ScheduleFlag.SCHEDULE_ONCHANGE) return LL.ONCHANGE();
     if (scheduleType === ScheduleFlag.SCHEDULE_IMMEDIATE) return LL.IMMEDIATE();
     return LL.TIME(1);
-  }, [scheduleType, LL]);
+  })();
 
   return (
     <Dialog sx={dialogStyle} open={open} onClose={handleClose}>

interface/src/app/main/Sensors.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useContext, useMemo, useRef, useState } from 'react';
+import { useContext, useRef, useState } from 'react';
 import { toast } from 'react-toastify';
 
 import AddCircleOutlineOutlinedIcon from '@mui/icons-material/AddCircleOutlineOutlined';
@@ -158,18 +158,16 @@ const Sensors = () => {
     }
   );
 
-  const intervalCallback = useCallback(() => {
+  useInterval(() => {
     if (!temperatureDialogOpen && !analogDialogOpen) {
       void fetchSensorData();
     }
-  }, [temperatureDialogOpen, analogDialogOpen, fetchSensorData]);
-
-  useInterval(intervalCallback);
+  });
 
   const temperature_theme = useTheme([common_theme, temperature_theme_config]);
   const analog_theme = useTheme([common_theme, analog_theme_config]);
 
-  const getSortIcon = useCallback((state: State, sortKey: unknown) => {
+  const getSortIcon = (state: State, sortKey: unknown) => {
     if (state.sortKey === sortKey && state.reverse) {
       return <KeyboardArrowDownOutlinedIcon />;
     }
@@ -177,7 +175,7 @@ const Sensors = () => {
       return <KeyboardArrowUpOutlinedIcon />;
     }
     return <UnfoldMoreOutlinedIcon />;
-  }, []);
+  };
 
   const analog_sort = useSort(
     { nodes: sensorData.as },
@@ -234,119 +232,104 @@ const Sensors = () => {
 
   useLayoutTitle(LL.SENSORS());
 
-  const formatDurationMin = useCallback(
-    (duration_min: number) => {
-      const totalMs = duration_min * MS_PER_MINUTE;
-      const days = Math.trunc(totalMs / MS_PER_DAY);
-      const hours = Math.trunc(totalMs / MS_PER_HOUR) % 24;
-      const minutes = Math.trunc(totalMs / MS_PER_MINUTE) % 60;
+  const formatDurationMin = (duration_min: number) => {
+    const totalMs = duration_min * MS_PER_MINUTE;
+    const days = Math.trunc(totalMs / MS_PER_DAY);
+    const hours = Math.trunc(totalMs / MS_PER_HOUR) % 24;
+    const minutes = Math.trunc(totalMs / MS_PER_MINUTE) % 60;
 
-      const parts: string[] = [];
-      if (days > 0) {
-        parts.push(LL.NUM_DAYS({ num: days }));
-      }
-      if (hours > 0) {
-        parts.push(LL.NUM_HOURS({ num: hours }));
-      }
-      if (minutes > 0) {
-        parts.push(LL.NUM_MINUTES({ num: minutes }));
-      }
-      return parts.join(' ');
-    },
-    [LL]
-  );
+    const parts: string[] = [];
+    if (days > 0) {
+      parts.push(LL.NUM_DAYS({ num: days }));
+    }
+    if (hours > 0) {
+      parts.push(LL.NUM_HOURS({ num: hours }));
+    }
+    if (minutes > 0) {
+      parts.push(LL.NUM_MINUTES({ num: minutes }));
+    }
+    return parts.join(' ');
+  };
 
-  const formatValue = useCallback(
-    (value: unknown, uom: DeviceValueUOM) => {
-      if (value === undefined) {
-        return '';
-      }
-      if (typeof value !== 'number') {
-        return value as string;
-      }
-      switch (uom) {
-        case DeviceValueUOM.HOURS:
-          return value ? formatDurationMin(value * 60) : LL.NUM_HOURS({ num: 0 });
-        case DeviceValueUOM.MINUTES:
-          return value ? formatDurationMin(value) : LL.NUM_MINUTES({ num: 0 });
-        case DeviceValueUOM.SECONDS:
-          return LL.NUM_SECONDS({ num: value });
-        case DeviceValueUOM.NONE:
-          return new Intl.NumberFormat().format(value);
-        case DeviceValueUOM.DEGREES:
-        case DeviceValueUOM.DEGREES_R:
-        case DeviceValueUOM.FAHRENHEIT:
-          return (
-            new Intl.NumberFormat(undefined, {
-              minimumFractionDigits: 1
-            }).format(value) +
-            ' ' +
-            DeviceValueUOM_s[uom]
-          );
-        default:
-          return new Intl.NumberFormat().format(value) + ' ' + DeviceValueUOM_s[uom];
-      }
-    },
-    [formatDurationMin, LL]
-  );
+  const formatValue = (value: unknown, uom: DeviceValueUOM) => {
+    if (value === undefined) {
+      return '';
+    }
+    if (typeof value !== 'number') {
+      return value as string;
+    }
+    switch (uom) {
+      case DeviceValueUOM.HOURS:
+        return value ? formatDurationMin(value * 60) : LL.NUM_HOURS({ num: 0 });
+      case DeviceValueUOM.MINUTES:
+        return value ? formatDurationMin(value) : LL.NUM_MINUTES({ num: 0 });
+      case DeviceValueUOM.SECONDS:
+        return LL.NUM_SECONDS({ num: value });
+      case DeviceValueUOM.NONE:
+        return new Intl.NumberFormat().format(value);
+      case DeviceValueUOM.DEGREES:
+      case DeviceValueUOM.DEGREES_R:
+      case DeviceValueUOM.FAHRENHEIT:
+        return (
+          new Intl.NumberFormat(undefined, {
+            minimumFractionDigits: 1
+          }).format(value) +
+          ' ' +
+          DeviceValueUOM_s[uom]
+        );
+      default:
+        return new Intl.NumberFormat().format(value) + ' ' + DeviceValueUOM_s[uom];
+    }
+  };
 
-  const updateTemperatureSensor = useCallback(
-    (ts: TemperatureSensor) => {
-      if (me.admin) {
-        ts.o_n = ts.n;
-        setSelectedTemperatureSensor(ts);
-        setTemperatureDialogOpen(true);
-      }
-    },
-    [me.admin]
-  );
+  const updateTemperatureSensor = (ts: TemperatureSensor) => {
+    if (me.admin) {
+      ts.o_n = ts.n;
+      setSelectedTemperatureSensor(ts);
+      setTemperatureDialogOpen(true);
+    }
+  };
 
-  const onTemperatureDialogClose = useCallback(() => {
+  const onTemperatureDialogClose = () => {
     setTemperatureDialogOpen(false);
     void fetchSensorData();
-  }, [fetchSensorData]);
+  };
 
-  const onTemperatureDialogSave = useCallback(
-    async (ts: TemperatureSensor) => {
-      await sendTemperatureSensor({
-        id: ts.id,
-        name: ts.n,
-        offset: ts.o,
-        is_system: ts.s
+  const onTemperatureDialogSave = async (ts: TemperatureSensor) => {
+    await sendTemperatureSensor({
+      id: ts.id,
+      name: ts.n,
+      offset: ts.o,
+      is_system: ts.s
+    })
+      .then(() => {
+        toast.success(LL.UPDATED_OF(LL.SENSOR(1)));
       })
-        .then(() => {
-          toast.success(LL.UPDATED_OF(LL.SENSOR(1)));
-        })
-        .catch(() => {
-          toast.error(LL.UPDATE_OF(LL.SENSOR(2)) + ' ' + LL.FAILED(1));
-        })
-        .finally(() => {
-          setTemperatureDialogOpen(false);
-          setSelectedTemperatureSensor(undefined);
-          void fetchSensorData();
-        });
-    },
-    [sendTemperatureSensor, LL, fetchSensorData]
-  );
+      .catch(() => {
+        toast.error(LL.UPDATE_OF(LL.SENSOR(2)) + ' ' + LL.FAILED(1));
+      })
+      .finally(() => {
+        setTemperatureDialogOpen(false);
+        setSelectedTemperatureSensor(undefined);
+        void fetchSensorData();
+      });
+  };
 
-  const updateAnalogSensor = useCallback(
-    (as: AnalogSensor) => {
-      if (me.admin) {
-        setCreating(false);
-        as.o_n = as.n;
-        setSelectedAnalogSensor(as);
-        setAnalogDialogOpen(true);
-      }
-    },
-    [me.admin]
-  );
+  const updateAnalogSensor = (as: AnalogSensor) => {
+    if (me.admin) {
+      setCreating(false);
+      as.o_n = as.n;
+      setSelectedAnalogSensor(as);
+      setAnalogDialogOpen(true);
+    }
+  };
 
-  const onAnalogDialogClose = useCallback(() => {
+  const onAnalogDialogClose = () => {
     setAnalogDialogOpen(false);
     void fetchSensorData();
-  }, [fetchSensorData]);
+  };
 
-  const addAnalogSensor = useCallback(() => {
+  const addAnalogSensor = () => {
     if (firstAvailableGPIO.current === undefined) {
       toast.error(LL.NO_GPIO());
       return;
@@ -366,194 +349,167 @@ const Sensors = () => {
       o_n: ''
     });
     setAnalogDialogOpen(true);
-  }, []);
+  };
 
-  const onAnalogDialogSave = useCallback(
-    async (as: AnalogSensor) => {
-      await sendAnalogSensor({
-        id: as.id,
-        gpio: as.g,
-        name: as.n,
-        offset: as.o,
-        factor: as.f,
-        uom: as.u,
-        type: as.t,
-        deleted: as.d,
-        is_system: as.s
+  const onAnalogDialogSave = async (as: AnalogSensor) => {
+    await sendAnalogSensor({
+      id: as.id,
+      gpio: as.g,
+      name: as.n,
+      offset: as.o,
+      factor: as.f,
+      uom: as.u,
+      type: as.t,
+      deleted: as.d,
+      is_system: as.s
+    })
+      .then(() => {
+        toast.success(LL.UPDATED_OF(LL.ANALOG_SENSOR(2)));
       })
-        .then(() => {
-          toast.success(LL.UPDATED_OF(LL.ANALOG_SENSOR(2)));
-        })
-        .catch(() => {
-          toast.error(LL.UPDATE_OF(LL.ANALOG_SENSOR(5)) + ' ' + LL.FAILED(1));
-        })
-        .finally(() => {
-          setAnalogDialogOpen(false);
-          setSelectedAnalogSensor(undefined);
-          void fetchSensorData();
-        });
-    },
-    [sendAnalogSensor, LL, fetchSensorData]
+      .catch(() => {
+        toast.error(LL.UPDATE_OF(LL.ANALOG_SENSOR(5)) + ' ' + LL.FAILED(1));
+      })
+      .finally(() => {
+        setAnalogDialogOpen(false);
+        setSelectedAnalogSensor(undefined);
+        void fetchSensorData();
+      });
+  };
+
+  const RenderAnalogSensors = (
+    <Table
+      data={{ nodes: sensorData.as }}
+      theme={analog_theme}
+      sort={analog_sort}
+      layout={{ custom: true }}
+    >
+      {(tableList: AnalogSensor[]) => (
+        <>
+          <Header>
+            <HeaderRow>
+              <HeaderCell stiff>
+                <Button
+                  fullWidth
+                  style={HEADER_BUTTON_STYLE}
+                  endIcon={getSortIcon(analog_sort.state, 'GPIO')}
+                  onClick={() => analog_sort.fns.onToggleSort({ sortKey: 'GPIO' })}
+                >
+                  GPIO
+                </Button>
+              </HeaderCell>
+              <HeaderCell resize>
+                <Button
+                  fullWidth
+                  style={HEADER_BUTTON_STYLE}
+                  endIcon={getSortIcon(analog_sort.state, 'NAME')}
+                  onClick={() => analog_sort.fns.onToggleSort({ sortKey: 'NAME' })}
+                >
+                  {LL.NAME(0)}
+                </Button>
+              </HeaderCell>
+              <HeaderCell stiff>
+                <Button
+                  fullWidth
+                  style={HEADER_BUTTON_STYLE}
+                  endIcon={getSortIcon(analog_sort.state, 'TYPE')}
+                  onClick={() => analog_sort.fns.onToggleSort({ sortKey: 'TYPE' })}
+                >
+                  {LL.TYPE(0)}
+                </Button>
+              </HeaderCell>
+              <HeaderCell stiff>
+                <Button
+                  fullWidth
+                  style={HEADER_BUTTON_STYLE_END}
+                  endIcon={getSortIcon(analog_sort.state, 'VALUE')}
+                  onClick={() => analog_sort.fns.onToggleSort({ sortKey: 'VALUE' })}
+                >
+                  {LL.VALUE(0)}
+                </Button>
+              </HeaderCell>
+            </HeaderRow>
+          </Header>
+          <Body>
+            {tableList.map((as: AnalogSensor) => (
+              <Row
+                style={{ color: as.s ? 'grey' : 'inherit' }}
+                key={as.id}
+                item={as}
+                onClick={() => updateAnalogSensor(as)}
+              >
+                <Cell stiff>{as.g}</Cell>
+                <Cell>{as.n}</Cell>
+                <Cell stiff>{AnalogTypeNames[as.t - 1]} </Cell>
+                {(as.t === AnalogType.DIGITAL_OUT &&
+                  as.g !== GPIO_25 &&
+                  as.g !== GPIO_26) ||
+                as.t === AnalogType.DIGITAL_IN ||
+                as.t === AnalogType.PULSE ? (
+                  <Cell stiff>{as.v ? LL.ON() : LL.OFF()}</Cell>
+                ) : (
+                  <Cell stiff>{formatValue(as.v, as.u)}</Cell>
+                )}
+              </Row>
+            ))}
+          </Body>
+        </>
+      )}
+    </Table>
   );
 
-  const RenderAnalogSensors = useMemo(
-    () => (
-      <Table
-        data={{ nodes: sensorData.as }}
-        theme={analog_theme}
-        sort={analog_sort}
-        layout={{ custom: true }}
-      >
-        {(tableList: AnalogSensor[]) => (
-          <>
-            <Header>
-              <HeaderRow>
-                <HeaderCell stiff>
-                  <Button
-                    fullWidth
-                    style={HEADER_BUTTON_STYLE}
-                    endIcon={getSortIcon(analog_sort.state, 'GPIO')}
-                    onClick={() => analog_sort.fns.onToggleSort({ sortKey: 'GPIO' })}
-                  >
-                    GPIO
-                  </Button>
-                </HeaderCell>
-                <HeaderCell resize>
-                  <Button
-                    fullWidth
-                    style={HEADER_BUTTON_STYLE}
-                    endIcon={getSortIcon(analog_sort.state, 'NAME')}
-                    onClick={() => analog_sort.fns.onToggleSort({ sortKey: 'NAME' })}
-                  >
-                    {LL.NAME(0)}
-                  </Button>
-                </HeaderCell>
-                <HeaderCell stiff>
-                  <Button
-                    fullWidth
-                    style={HEADER_BUTTON_STYLE}
-                    endIcon={getSortIcon(analog_sort.state, 'TYPE')}
-                    onClick={() => analog_sort.fns.onToggleSort({ sortKey: 'TYPE' })}
-                  >
-                    {LL.TYPE(0)}
-                  </Button>
-                </HeaderCell>
-                <HeaderCell stiff>
-                  <Button
-                    fullWidth
-                    style={HEADER_BUTTON_STYLE_END}
-                    endIcon={getSortIcon(analog_sort.state, 'VALUE')}
-                    onClick={() =>
-                      analog_sort.fns.onToggleSort({ sortKey: 'VALUE' })
-                    }
-                  >
-                    {LL.VALUE(0)}
-                  </Button>
-                </HeaderCell>
-              </HeaderRow>
-            </Header>
-            <Body>
-              {tableList.map((as: AnalogSensor) => (
-                <Row
-                  style={{ color: as.s ? 'grey' : 'inherit' }}
-                  key={as.id}
-                  item={as}
-                  onClick={() => updateAnalogSensor(as)}
+  const RenderTemperatureSensors = (
+    <Table
+      data={{ nodes: sensorData.ts }}
+      theme={temperature_theme}
+      sort={temperature_sort}
+      layout={{ custom: true }}
+    >
+      {(tableList: TemperatureSensor[]) => (
+        <>
+          <Header>
+            <HeaderRow>
+              <HeaderCell resize>
+                <Button
+                  fullWidth
+                  style={HEADER_BUTTON_STYLE}
+                  endIcon={getSortIcon(temperature_sort.state, 'NAME')}
+                  onClick={() =>
+                    temperature_sort.fns.onToggleSort({ sortKey: 'NAME' })
+                  }
                 >
-                  <Cell stiff>{as.g}</Cell>
-                  <Cell>{as.n}</Cell>
-                  <Cell stiff>{AnalogTypeNames[as.t - 1]} </Cell>
-                  {(as.t === AnalogType.DIGITAL_OUT &&
-                    as.g !== GPIO_25 &&
-                    as.g !== GPIO_26) ||
-                  as.t === AnalogType.DIGITAL_IN ||
-                  as.t === AnalogType.PULSE ? (
-                    <Cell stiff>{as.v ? LL.ON() : LL.OFF()}</Cell>
-                  ) : (
-                    <Cell stiff>{formatValue(as.v, as.u)}</Cell>
-                  )}
-                </Row>
-              ))}
-            </Body>
-          </>
-        )}
-      </Table>
-    ),
-    [
-      analog_sort,
-      analog_theme,
-      getSortIcon,
-      sensorData.as,
-      LL,
-      updateAnalogSensor,
-      formatValue
-    ]
-  );
-
-  const RenderTemperatureSensors = useMemo(
-    () => (
-      <Table
-        data={{ nodes: sensorData.ts }}
-        theme={temperature_theme}
-        sort={temperature_sort}
-        layout={{ custom: true }}
-      >
-        {(tableList: TemperatureSensor[]) => (
-          <>
-            <Header>
-              <HeaderRow>
-                <HeaderCell resize>
-                  <Button
-                    fullWidth
-                    style={HEADER_BUTTON_STYLE}
-                    endIcon={getSortIcon(temperature_sort.state, 'NAME')}
-                    onClick={() =>
-                      temperature_sort.fns.onToggleSort({ sortKey: 'NAME' })
-                    }
-                  >
-                    {LL.NAME(0)}
-                  </Button>
-                </HeaderCell>
-                <HeaderCell stiff>
-                  <Button
-                    fullWidth
-                    style={HEADER_BUTTON_STYLE_END}
-                    endIcon={getSortIcon(temperature_sort.state, 'VALUE')}
-                    onClick={() =>
-                      temperature_sort.fns.onToggleSort({ sortKey: 'VALUE' })
-                    }
-                  >
-                    {LL.VALUE(0)}
-                  </Button>
-                </HeaderCell>
-              </HeaderRow>
-            </Header>
-            <Body>
-              {tableList.map((ts: TemperatureSensor) => (
-                <Row
-                  style={{ color: ts.s ? 'grey' : 'inherit' }}
-                  key={ts.id}
-                  item={ts}
-                  onClick={() => updateTemperatureSensor(ts)}
+                  {LL.NAME(0)}
+                </Button>
+              </HeaderCell>
+              <HeaderCell stiff>
+                <Button
+                  fullWidth
+                  style={HEADER_BUTTON_STYLE_END}
+                  endIcon={getSortIcon(temperature_sort.state, 'VALUE')}
+                  onClick={() =>
+                    temperature_sort.fns.onToggleSort({ sortKey: 'VALUE' })
+                  }
                 >
-                  <Cell>{ts.n}</Cell>
-                  <Cell>{formatValue(ts.t, ts.u)}</Cell>
-                </Row>
-              ))}
-            </Body>
-          </>
-        )}
-      </Table>
-    ),
-    [
-      temperature_sort,
-      temperature_theme,
-      getSortIcon,
-      sensorData.ts,
-      LL,
-      updateTemperatureSensor,
-      formatValue
-    ]
+                  {LL.VALUE(0)}
+                </Button>
+              </HeaderCell>
+            </HeaderRow>
+          </Header>
+          <Body>
+            {tableList.map((ts: TemperatureSensor) => (
+              <Row
+                style={{ color: ts.s ? 'grey' : 'inherit' }}
+                key={ts.id}
+                item={ts}
+                onClick={() => updateTemperatureSensor(ts)}
+              >
+                <Cell>{ts.n}</Cell>
+                <Cell>{formatValue(ts.t, ts.u)}</Cell>
+              </Row>
+            ))}
+          </Body>
+        </>
+      )}
+    </Table>
   );
 
   return (

interface/src/app/main/SensorsAnalogDialog.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useEffect, useMemo, useState } from 'react';
+import { useEffect, useState } from 'react';
 
 import CancelIcon from '@mui/icons-material/Cancel';
 import DoneIcon from '@mui/icons-material/Done';
@@ -23,7 +23,7 @@ import type { ValidateFieldsError } from 'async-validator';
 import { ValidatedTextField } from 'components';
 import { useI18nContext } from 'i18n/i18n-react';
 import { numberValue, updateValue } from 'utils';
-import { validate } from 'validators';
+import { ValidationError, validate } from 'validators';
 
 import { AnalogType, AnalogTypeNames, DeviceValueUOM_s } from './types';
 import type { AnalogSensor } from './types';
@@ -53,84 +53,54 @@ const SensorsAnalogDialog = ({
   const [fieldErrors, setFieldErrors] = useState<ValidateFieldsError>();
   const [editItem, setEditItem] = useState<AnalogSensor>(selectedItem);
 
-  const updateFormValue = useMemo(
-    () =>
-      updateValue((updater) =>
-        setEditItem(
-          (prev) =>
-            updater(
-              prev as unknown as Record<string, unknown>
-            ) as unknown as AnalogSensor
-        )
-      ),
-    [setEditItem]
+  const updateFormValue = updateValue((updater) =>
+    setEditItem(
+      (prev) =>
+        updater(
+          prev as unknown as Record<string, unknown>
+        ) as unknown as AnalogSensor
+    )
   );
 
-  // Memoize helper functions to check sensor type conditions
-  const isCounterOrRate = useMemo(
-    () =>
-      editItem.t === AnalogType.COUNTER ||
-      editItem.t === AnalogType.RATE ||
-      (editItem.t >= AnalogType.CNT_0 && editItem.t <= AnalogType.CNT_2),
-    [editItem.t]
-  );
-  const isCounter = useMemo(
-    () =>
-      editItem.t === AnalogType.COUNTER ||
-      (editItem.t >= AnalogType.CNT_0 && editItem.t <= AnalogType.CNT_2),
-    [editItem.t]
-  );
-  const isFreqType = useMemo(
-    () => editItem.t >= AnalogType.FREQ_0 && editItem.t <= AnalogType.FREQ_2,
-    [editItem.t]
-  );
-  const isPWM = useMemo(
-    () =>
-      editItem.t === AnalogType.PWM_0 ||
-      editItem.t === AnalogType.PWM_1 ||
-      editItem.t === AnalogType.PWM_2,
-    [editItem.t]
-  );
-  const isDACOutGPIO = useMemo(
-    () =>
-      editItem.t === AnalogType.DIGITAL_OUT &&
-      (editItem.g === 25 || editItem.g === 26),
-    [editItem.t, editItem.g]
-  );
-  const isDigitalOutGPIO = useMemo(
-    () =>
-      editItem.t === AnalogType.DIGITAL_OUT &&
-      editItem.g !== 25 &&
-      editItem.g !== 26,
-    [editItem.t, editItem.g]
-  );
+  const isCounterOrRate =
+    editItem.t === AnalogType.COUNTER ||
+    editItem.t === AnalogType.RATE ||
+    (editItem.t >= AnalogType.CNT_0 && editItem.t <= AnalogType.CNT_2);
+  const isCounter =
+    editItem.t === AnalogType.COUNTER ||
+    (editItem.t >= AnalogType.CNT_0 && editItem.t <= AnalogType.CNT_2);
+  const isFreqType =
+    editItem.t >= AnalogType.FREQ_0 && editItem.t <= AnalogType.FREQ_2;
+  const isPWM =
+    editItem.t === AnalogType.PWM_0 ||
+    editItem.t === AnalogType.PWM_1 ||
+    editItem.t === AnalogType.PWM_2;
+  const isDACOutGPIO =
+    editItem.t === AnalogType.DIGITAL_OUT &&
+    (editItem.g === 25 || editItem.g === 26);
+  const isDigitalOutGPIO =
+    editItem.t === AnalogType.DIGITAL_OUT && editItem.g !== 25 && editItem.g !== 26;
 
-  // Memoize menu items to avoid recreation on each render
-  const analogTypeMenuItems = useMemo(
-    () =>
-      AnalogTypeNames.map((val, i) => ({ name: val, value: i + 1 }))
-        .sort((a, b) => a.name.localeCompare(b.name))
-        .map(({ name, value }) => (
-          <MenuItem
-            key={name}
-            value={value}
-            disabled={disabledTypeList?.includes(value)}
-          >
-            {name}
-          </MenuItem>
-        )),
-    [disabledTypeList]
-  );
+  const analogTypeMenuItems = AnalogTypeNames.map((val, i) => ({
+    name: val,
+    value: i + 1
+  }))
+    .sort((a, b) => a.name.localeCompare(b.name))
+    .map(({ name, value }) => (
+      <MenuItem
+        key={name}
+        value={value}
+        disabled={disabledTypeList?.includes(value)}
+      >
+        {name}
+      </MenuItem>
+    ));
 
-  const uomMenuItems = useMemo(
-    () =>
-      DeviceValueUOM_s.map((val, i) => (
-        <MenuItem key={val} value={i}>
-          {val}
-        </MenuItem>
-      )),
-    []
-  );
+  const uomMenuItems = DeviceValueUOM_s.map((val, i) => (
+    <MenuItem key={val} value={i}>
+      {val}
+    </MenuItem>
+  ));
 
   const analogGPIOMenuItems = () =>
     // add selectedItem.g to the list
@@ -157,34 +127,30 @@ const SensorsAnalogDialog = ({
     }
   }, [open, selectedItem]);
 
-  const handleClose = useCallback(
-    (_event: React.SyntheticEvent, reason: 'backdropClick' | 'escapeKeyDown') => {
-      if (reason !== 'backdropClick') {
-        onClose();
-      }
-    },
-    [onClose]
-  );
+  const handleClose = (
+    _event: React.SyntheticEvent,
+    reason: 'backdropClick' | 'escapeKeyDown'
+  ) => {
+    if (reason !== 'backdropClick') {
+      onClose();
+    }
+  };
 
-  const save = useCallback(async () => {
+  const save = async () => {
     try {
       setFieldErrors(undefined);
       await validate(validator, editItem);
       onSave(editItem);
     } catch (error) {
-      setFieldErrors(error as ValidateFieldsError);
+      setFieldErrors((error as ValidationError).fieldErrors);
     }
-  }, [validator, editItem, onSave]);
+  };
 
-  const remove = useCallback(() => {
+  const remove = () => {
     onSave({ ...editItem, d: true });
-  }, [editItem, onSave]);
+  };
 
-  const dialogTitle = useMemo(
-    () =>
-      `${creating ? LL.ADD(1) + ' ' + LL.NEW(0) : LL.EDIT()} ${LL.ANALOG_SENSOR(0)}`,
-    [creating, LL]
-  );
+  const dialogTitle = `${creating ? LL.ADD(1) + ' ' + LL.NEW(0) : LL.EDIT()} ${LL.ANALOG_SENSOR(0)}`;
 
   return (
     <Dialog sx={dialogStyle} open={open} onClose={handleClose}>

interface/src/app/main/SensorsTemperatureDialog.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useEffect, useMemo, useState } from 'react';
+import { useEffect, useState } from 'react';
 
 import CancelIcon from '@mui/icons-material/Cancel';
 import DoneIcon from '@mui/icons-material/Done';
@@ -21,7 +21,7 @@ import type { ValidateFieldsError } from 'async-validator';
 import { ValidatedTextField } from 'components';
 import { useI18nContext } from 'i18n/i18n-react';
 import { numberValue, updateValue } from 'utils';
-import { validate } from 'validators';
+import { ValidationError, validate } from 'validators';
 
 import type { TemperatureSensor } from './types';
 
@@ -50,16 +50,12 @@ const SensorsTemperatureDialog = ({
   const [fieldErrors, setFieldErrors] = useState<ValidateFieldsError>();
   const [editItem, setEditItem] = useState<TemperatureSensor>(selectedItem);
 
-  const updateFormValue = useMemo(
-    () =>
-      updateValue(
-        setEditItem as unknown as (
-          updater: (
-            prevState: Readonly<Record<string, unknown>>
-          ) => Record<string, unknown>
-        ) => void
-      ),
-    [setEditItem]
+  const updateFormValue = updateValue(
+    setEditItem as unknown as (
+      updater: (
+        prevState: Readonly<Record<string, unknown>>
+      ) => Record<string, unknown>
+    ) => void
   );
 
   useEffect(() => {
@@ -69,46 +65,25 @@ const SensorsTemperatureDialog = ({
     }
   }, [open, selectedItem]);
 
-  const handleClose = useCallback(
-    (_event: React.SyntheticEvent, reason?: string) => {
-      if (reason !== 'backdropClick') {
-        onClose();
-      }
-    },
-    [onClose]
-  );
+  const handleClose = (_event: React.SyntheticEvent, reason?: string) => {
+    if (reason !== 'backdropClick') {
+      onClose();
+    }
+  };
 
-  const save = useCallback(async () => {
+  const save = async () => {
     try {
       setFieldErrors(undefined);
       await validate(validator, editItem);
       onSave(editItem);
     } catch (error) {
-      setFieldErrors(error as ValidateFieldsError);
+      setFieldErrors((error as ValidationError).fieldErrors);
     }
-  }, [validator, editItem, onSave]);
-
-  const dialogTitle = useMemo(() => `${LL.EDIT()} ${LL.TEMP_SENSOR()}`, [LL]);
-
-  const offsetValue = useMemo(() => numberValue(editItem.o), [editItem.o]);
-
-  const slotProps = useMemo(
-    () => ({
-      input: {
-        startAdornment: <InputAdornment position="start">{TEMP_UNIT}</InputAdornment>
-      },
-      htmlInput: {
-        min: OFFSET_MIN,
-        max: OFFSET_MAX,
-        step: OFFSET_STEP
-      }
-    }),
-    []
-  );
+  };
 
   return (
     <Dialog sx={dialogStyle} open={open} onClose={handleClose}>
-      <DialogTitle>{dialogTitle}</DialogTitle>
+      <DialogTitle>{`${LL.EDIT()} ${LL.TEMP_SENSOR()}`}</DialogTitle>
       <DialogContent dividers>
         <Typography sx={{ mb: 2 }} color="warning" variant="body2">
           {LL.ID_OF(LL.SENSOR(0))}: {editItem.id}
@@ -128,12 +103,23 @@ const SensorsTemperatureDialog = ({
             <TextField
               name="o"
               label={LL.OFFSET()}
-              value={offsetValue}
+              value={numberValue(editItem.o)}
               sx={{ width: '11ch' }}
               type="number"
               variant="outlined"
               onChange={updateFormValue}
-              slotProps={slotProps}
+              slotProps={{
+                input: {
+                  startAdornment: (
+                    <InputAdornment position="start">{TEMP_UNIT}</InputAdornment>
+                  )
+                },
+                htmlInput: {
+                  min: OFFSET_MIN,
+                  max: OFFSET_MAX,
+                  step: OFFSET_STEP
+                }
+              }}
             />
           </Grid>
         </Grid>

interface/src/app/main/UserProfile.tsx

@@ -1,4 +1,4 @@
-import { memo, useCallback, useContext } from 'react';
+import { memo, useContext } from 'react';
 
 import PersonIcon from '@mui/icons-material/Person';
 import {
@@ -23,9 +23,9 @@ const UserProfileComponent = () => {
 
   useLayoutTitle(LL.USER_PROFILE());
 
-  const handleSignOut = useCallback(() => {
+  const handleSignOut = () => {
     signOut(true);
-  }, [signOut]);
+  };
 
   return (
     <SectionContent>

interface/src/app/main/types.ts

@@ -43,6 +43,16 @@ export interface Settings {
   modbus_port: number;
   modbus_max_clients: number;
   modbus_timeout: number;
+  email_enabled: boolean;
+  email_ssl?: boolean;
+  email_starttls?: boolean;
+  email_server: string;
+  email_port: number;
+  email_login: string;
+  email_pass: string;
+  email_sender: string;
+  email_recp: string;
+  email_subject: string;
   developer_mode: boolean;
 }
 

interface/src/app/settings/APSettings.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useMemo, useState } from 'react';
+import { useState } from 'react';
 
 import CancelIcon from '@mui/icons-material/Cancel';
 import WarningIcon from '@mui/icons-material/Warning';
@@ -21,10 +21,9 @@ import { useI18nContext } from 'i18n/i18n-react';
 import type { APSettingsType } from 'types';
 import { APProvisionMode } from 'types';
 import { numberValue, updateValueDirty, useRest } from 'utils';
-import { createAPSettingsValidator, validate } from 'validators';
+import { ValidationError, createAPSettingsValidator, validate } from 'validators';
 
 export const isAPEnabled = ({ provision_mode }: APSettingsType) =>
-  provision_mode === APProvisionMode.AP_MODE_ALWAYS ||
   provision_mode === APProvisionMode.AP_MODE_DISCONNECTED;
 
 // Efficient range function without recursion
@@ -63,22 +62,16 @@ const APSettings = () => {
 
   const [fieldErrors, setFieldErrors] = useState<ValidateFieldsError>();
 
-  const updateFormValue = useMemo(
-    () =>
-      updateValueDirty(
-        origData as unknown as Record<string, unknown>,
-        dirtyFlags,
-        setDirtyFlags,
-        updateDataValue as (value: unknown) => void
-      ),
-    [origData, dirtyFlags, setDirtyFlags, updateDataValue]
+  const updateFormValue = updateValueDirty(
+    origData as unknown as Record<string, unknown>,
+    dirtyFlags,
+    setDirtyFlags,
+    updateDataValue as (value: unknown) => void
   );
 
-  // Memoize AP enabled state
-  const apEnabled = useMemo(() => (data ? isAPEnabled(data) : false), [data]);
+  const apEnabled = data ? isAPEnabled(data) : false;
 
-  // Memoize validation and submit handler
-  const validateAndSubmit = useCallback(async () => {
+  const validateAndSubmit = async () => {
     if (!data) return;
 
     try {
@@ -86,9 +79,9 @@ const APSettings = () => {
       await validate(createAPSettingsValidator(data), data);
       await saveData();
     } catch (error) {
-      setFieldErrors(error as ValidateFieldsError);
+      setFieldErrors((error as ValidationError).fieldErrors);
     }
-  }, [data, saveData]);
+  };
 
   const content = () => {
     if (!data) {
@@ -108,9 +101,6 @@ const APSettings = () => {
           onChange={updateFormValue}
           margin="normal"
         >
-          <MenuItem value={APProvisionMode.AP_MODE_ALWAYS}>
-            {LL.AP_PROVIDE_TEXT_1()}
-          </MenuItem>
           <MenuItem value={APProvisionMode.AP_MODE_DISCONNECTED}>
             {LL.AP_PROVIDE_TEXT_2()}
           </MenuItem>

interface/src/app/settings/ApplicationSettings.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useMemo, useState } from 'react';
+import { useState } from 'react';
 import { toast } from 'react-toastify';
 
 import CancelIcon from '@mui/icons-material/Cancel';
@@ -28,12 +28,13 @@ import {
   FormLoader,
   MessageBox,
   SectionContent,
+  ValidatedPasswordField,
   ValidatedTextField,
   useLayoutTitle
 } from 'components';
 import { useI18nContext } from 'i18n/i18n-react';
 import { numberValue, updateValueDirty, useRest } from 'utils';
-import { validate } from 'validators';
+import { ValidationError, validate } from 'validators';
 
 import { API, getBoardProfile, readSettings, writeSettings } from '../../api/app';
 import { BOARD_PROFILES } from '../main/types';
@@ -106,82 +107,65 @@ const ApplicationSettings = () => {
     });
   });
 
-  // Memoized input props to prevent recreation on every render
-  const SecondsInputProps = useMemo(
-    () => ({
-      endAdornment: <InputAdornment position="end">{LL.SECONDS()}</InputAdornment>
-    }),
-    [LL]
-  );
+  const SecondsInputProps = {
+    endAdornment: <InputAdornment position="end">{LL.SECONDS()}</InputAdornment>
+  };
 
-  const MinutesInputProps = useMemo(
-    () => ({
-      endAdornment: <InputAdornment position="end">{LL.MINUTES()}</InputAdornment>
-    }),
-    [LL]
-  );
+  const MinutesInputProps = {
+    endAdornment: <InputAdornment position="end">{LL.MINUTES()}</InputAdornment>
+  };
 
-  const HoursInputProps = useMemo(
-    () => ({
-      endAdornment: <InputAdornment position="end">{LL.HOURS()}</InputAdornment>
-    }),
-    [LL]
-  );
+  const HoursInputProps = {
+    endAdornment: <InputAdornment position="end">{LL.HOURS()}</InputAdornment>
+  };
 
-  const doRestart = useCallback(async () => {
+  const doRestart = async () => {
     setRestarting(true);
     await sendAPI({ device: 'system', cmd: 'restart', id: 0 }).catch(
       (error: Error) => {
         toast.error(error.message);
       }
     );
-  }, [sendAPI]);
+  };
 
-  const updateBoardProfile = useCallback(
-    async (board_profile: string) => {
-      await readBoardProfile(board_profile).catch((error: Error) => {
-        toast.error(error.message);
-      });
-    },
-    [readBoardProfile]
-  );
+  const updateBoardProfile = async (board_profile: string) => {
+    await readBoardProfile(board_profile).catch((error: Error) => {
+      toast.error(error.message);
+    });
+  };
 
   useLayoutTitle(LL.APPLICATION());
 
-  const validateAndSubmit = useCallback(async () => {
+  const validateAndSubmit = async () => {
     try {
       setFieldErrors(undefined);
       await validate(createSettingsValidator(data), data);
     } catch (error) {
-      setFieldErrors(error as ValidateFieldsError);
+      setFieldErrors((error as ValidationError).fieldErrors);
     } finally {
       await saveData();
     }
-  }, [data, saveData]);
+  };
 
-  const changeBoardProfile = useCallback(
-    (event: React.ChangeEvent<HTMLInputElement>) => {
-      const boardProfile = event.target.value;
-      updateFormValue(event);
-      if (boardProfile === 'CUSTOM') {
-        updateDataValue({
-          ...data,
-          board_profile: boardProfile
-        });
-      } else {
-        void updateBoardProfile(boardProfile);
-      }
-    },
-    [data, updateBoardProfile, updateFormValue, updateDataValue]
-  );
+  const changeBoardProfile = (event: React.ChangeEvent<HTMLInputElement>) => {
+    const boardProfile = event.target.value;
+    updateFormValue(event);
+    if (boardProfile === 'CUSTOM') {
+      updateDataValue({
+        ...data,
+        board_profile: boardProfile
+      });
+    } else {
+      void updateBoardProfile(boardProfile);
+    }
+  };
 
-  const restart = useCallback(async () => {
+  const restart = async () => {
     await validateAndSubmit();
     await doRestart();
-  }, [validateAndSubmit, doRestart]);
+  };
 
-  // Memoize board profile select items to prevent recreation
-  const boardProfileItems = useMemo(() => boardProfileSelectItems(), []);
+  const boardProfileItems = boardProfileSelectItems();
 
   const content = () => {
     if (!data || !hardwareData) {
@@ -351,6 +335,156 @@ const ApplicationSettings = () => {
             </Grid>
           </Grid>
         )}
+        <Typography color="secondary">eMail</Typography>
+        <BlockFormControlLabel
+          control={
+            <Checkbox
+              checked={data.email_enabled}
+              onChange={updateFormValue}
+              name="email_enabled"
+              disabled={!hardwareData.psram}
+            />
+          }
+          label={
+            <Typography color={!hardwareData.psram ? 'grey' : 'default'}>
+              Enable eMail notification
+              {!hardwareData.psram && (
+                <Typography variant="caption">
+                  &nbsp; &#40;{LL.IS_REQUIRED('PSRAM')}&#41;
+                </Typography>
+              )}
+            </Typography>
+          }
+        />
+        {data.email_enabled && (
+          <>
+            <Grid
+              container
+              spacing={2}
+              direction="row"
+              justifyContent="flex-start"
+              alignItems="flex-start"
+            >
+              <Grid>
+                <ValidatedTextField
+                  fieldErrors={fieldErrors || {}}
+                  name="email_server"
+                  label="SMTP Server"
+                  variant="outlined"
+                  value={data.email_server}
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+              <Grid>
+                <ValidatedTextField
+                  fieldErrors={fieldErrors || {}}
+                  sx={{ width: '12ch' }}
+                  name="email_port"
+                  variant="outlined"
+                  label="Port"
+                  value={numberValue(data.email_port)}
+                  type="number"
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+              <Grid size={4} mt={!data.email_ssl && !data.email_starttls ? 0 : 3}>
+                {!data.email_starttls && (
+                  <BlockFormControlLabel
+                    sx={{ width: '12ch' }}
+                    control={
+                      <Checkbox
+                        checked={data.email_ssl}
+                        onChange={updateFormValue}
+                        name="email_ssl"
+                        disabled={
+                          data.email_starttls || data.email_ssl === undefined
+                        }
+                      />
+                    }
+                    label="SSL/TLS"
+                  />
+                )}
+                {!data.email_ssl && (
+                  <BlockFormControlLabel
+                    sx={{ width: '12ch' }}
+                    control={
+                      <Checkbox
+                        checked={data.email_starttls}
+                        onChange={updateFormValue}
+                        name="email_starttls"
+                        disabled={
+                          data.email_ssl || data.email_starttls === undefined
+                        }
+                      />
+                    }
+                    label="STARTTLS"
+                  />
+                )}
+              </Grid>
+            </Grid>
+            <Grid container spacing={2} rowSpacing={0}>
+              <Grid>
+                <ValidatedTextField
+                  fieldErrors={fieldErrors || {}}
+                  name="email_login"
+                  label="Login"
+                  variant="outlined"
+                  value={data.email_login}
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+              <Grid>
+                <ValidatedPasswordField
+                  fieldErrors={fieldErrors || {}}
+                  name="email_pass"
+                  label="Password"
+                  variant="outlined"
+                  value={data.email_pass}
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+            </Grid>
+            <Grid container spacing={2} rowSpacing={0}>
+              <Grid>
+                <ValidatedTextField
+                  fieldErrors={fieldErrors || {}}
+                  name="email_sender"
+                  label="From"
+                  variant="outlined"
+                  value={data.email_sender}
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+              <Grid>
+                <ValidatedTextField
+                  fieldErrors={fieldErrors || {}}
+                  name="email_recp"
+                  label="To"
+                  variant="outlined"
+                  value={data.email_recp}
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+              <Grid>
+                <ValidatedTextField
+                  fieldErrors={fieldErrors || {}}
+                  name="email_subject"
+                  label="Subject"
+                  variant="outlined"
+                  value={data.email_subject}
+                  onChange={updateFormValue}
+                  margin="normal"
+                />
+              </Grid>
+            </Grid>
+          </>
+        )}
         <Typography sx={{ pb: 1, pt: 2 }} variant="h6" color="primary">
           {LL.SENSORS()}
         </Typography>

interface/src/app/settings/DownloadUpload.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useMemo, useState } from 'react';
+import { useState } from 'react';
 import { toast } from 'react-toastify';
 
 import CancelIcon from '@mui/icons-material/Cancel';
@@ -57,7 +57,7 @@ const DownloadUpload = () => {
 
   const { data, send: loadData, error } = useRequest(SystemApi.readSystemStatus);
 
-  const doRestart = useCallback(async () => {
+  const doRestart = async () => {
     setRestarting(true);
     try {
       await sendAPI({ device: 'system', cmd: 'restart', id: 0 });
@@ -65,16 +65,33 @@ const DownloadUpload = () => {
       toast.error((error as Error).message);
       setRestarting(false);
     }
-  }, [sendAPI]);
+  };
 
   useLayoutTitle(LL.DOWNLOAD_UPLOAD());
 
-  const handleCloseBackupDialog = useCallback(() => {
+  const handleCloseBackupDialog = () => {
     setConfirmBackup(false);
-  }, []);
+  };
 
-  const renderBackupDialog = useMemo(
-    () => (
+  const handleDownload = (type: string) => () => {
+    void sendExportData(type);
+    setConfirmBackup(false);
+  };
+
+  if (restarting) {
+    return <SystemMonitor />;
+  }
+
+  if (!data) {
+    return (
+      <SectionContent>
+        <FormLoader onRetry={loadData} errorMessage={error?.message || ''} />
+      </SectionContent>
+    );
+  }
+
+  return (
+    <SectionContent>
       <Dialog
         sx={dialogStyle}
         open={confirmBackup}
@@ -98,39 +115,13 @@ const DownloadUpload = () => {
           <Button
             startIcon={<DownloadIcon />}
             variant="outlined"
-            onClick={() => handleDownload('systembackup')()}
+            onClick={handleDownload('systembackup')}
             color="primary"
           >
             {LL.DOWNLOAD(0)}
           </Button>
         </DialogActions>
       </Dialog>
-    ),
-    [confirmBackup, handleCloseBackupDialog, LL]
-  );
-
-  const handleDownload = useCallback(
-    (type: string) => () => {
-      void sendExportData(type);
-    },
-    [sendExportData]
-  );
-
-  if (restarting) {
-    return <SystemMonitor />;
-  }
-
-  if (!data) {
-    return (
-      <SectionContent>
-        <FormLoader onRetry={loadData} errorMessage={error?.message || ''} />
-      </SectionContent>
-    );
-  }
-
-  return (
-    <SectionContent>
-      {renderBackupDialog}
 
       <Typography sx={{ pb: 2 }} variant="h6" color="primary">
         {LL.DOWNLOAD(0)}

interface/src/app/settings/MqttSettings.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useMemo, useState } from 'react';
+import { useState } from 'react';
 import { toast } from 'react-toastify';
 
 import CancelIcon from '@mui/icons-material/Cancel';
@@ -31,7 +31,7 @@ import {
 import { useI18nContext } from 'i18n/i18n-react';
 import type { MqttSettingsType } from 'types';
 import { numberValue, updateValueDirty, useRest } from 'utils';
-import { createMqttSettingsValidator, validate } from 'validators';
+import { ValidationError, createMqttSettingsValidator, validate } from 'validators';
 
 import { callAction } from '../../api/app';
 
@@ -57,7 +57,7 @@ const MqttSettings = () => {
 
   const [fieldErrors, setFieldErrors] = useState<ValidateFieldsError>();
 
-  const sendResetMQTT = useCallback(() => {
+  const sendResetMQTT = () => {
     void callAction({ action: 'resetMQTT' })
       .then(() => {
         toast.success('MQTT ' + LL.REFRESH() + ' successful');
@@ -65,56 +65,44 @@ const MqttSettings = () => {
       .catch((error) => {
         toast.error(String(error.error?.message || 'An error occurred'));
       });
-  }, []);
+  };
 
-  const updateFormValue = useMemo(
-    () =>
-      updateValueDirty(
-        origData as unknown as Record<string, unknown>,
-        dirtyFlags,
-        setDirtyFlags,
-        updateDataValue as (value: unknown) => void
-      ),
-    [origData, dirtyFlags, setDirtyFlags, updateDataValue]
+  const updateFormValue = updateValueDirty(
+    origData as unknown as Record<string, unknown>,
+    dirtyFlags,
+    setDirtyFlags,
+    updateDataValue as (value: unknown) => void
   );
 
-  const SecondsInputProps = useMemo(
-    () => ({
-      endAdornment: <InputAdornment position="end">{LL.SECONDS()}</InputAdornment>
-    }),
-    [LL]
-  );
+  const SecondsInputProps = {
+    endAdornment: <InputAdornment position="end">{LL.SECONDS()}</InputAdornment>
+  };
 
-  const emptyFieldErrors = useMemo(() => ({}), []);
-
-  const validateAndSubmit = useCallback(async () => {
+  const validateAndSubmit = async () => {
     if (!data) return;
     try {
       setFieldErrors(undefined);
       await validate(createMqttSettingsValidator(data), data);
       await saveData();
     } catch (error) {
-      setFieldErrors(error as ValidateFieldsError);
+      setFieldErrors((error as ValidationError).fieldErrors);
     }
-  }, [data, saveData]);
+  };
 
-  const publishIntervalFields = useMemo(
-    () => [
-      { name: 'publish_time_heartbeat', label: 'Heartbeat', validated: true },
-      { name: 'publish_time_boiler', label: LL.MQTT_INT_BOILER(), validated: false },
-      {
-        name: 'publish_time_thermostat',
-        label: LL.MQTT_INT_THERMOSTATS(),
-        validated: false
-      },
-      { name: 'publish_time_solar', label: LL.MQTT_INT_SOLAR(), validated: false },
-      { name: 'publish_time_mixer', label: LL.MQTT_INT_MIXER(), validated: false },
-      { name: 'publish_time_water', label: LL.MQTT_INT_WATER(), validated: false },
-      { name: 'publish_time_sensor', label: LL.SENSORS(), validated: false },
-      { name: 'publish_time_other', label: LL.DEFAULT(0), validated: false }
-    ],
-    [LL]
-  );
+  const publishIntervalFields = [
+    { name: 'publish_time_heartbeat', label: 'Heartbeat', validated: true },
+    { name: 'publish_time_boiler', label: LL.MQTT_INT_BOILER(), validated: false },
+    {
+      name: 'publish_time_thermostat',
+      label: LL.MQTT_INT_THERMOSTATS(),
+      validated: false
+    },
+    { name: 'publish_time_solar', label: LL.MQTT_INT_SOLAR(), validated: false },
+    { name: 'publish_time_mixer', label: LL.MQTT_INT_MIXER(), validated: false },
+    { name: 'publish_time_water', label: LL.MQTT_INT_WATER(), validated: false },
+    { name: 'publish_time_sensor', label: LL.SENSORS(), validated: false },
+    { name: 'publish_time_other', label: LL.DEFAULT(0), validated: false }
+  ];
 
   if (!data) {
     return (
@@ -154,7 +142,7 @@ const MqttSettings = () => {
         <Grid container spacing={2} rowSpacing={0}>
           <Grid>
             <ValidatedTextField
-              fieldErrors={fieldErrors ?? emptyFieldErrors}
+              fieldErrors={fieldErrors ?? {}}
               name="host"
               label={LL.ADDRESS_OF(LL.BROKER())}
               multiline
@@ -166,7 +154,7 @@ const MqttSettings = () => {
           </Grid>
           <Grid>
             <ValidatedTextField
-              fieldErrors={fieldErrors ?? emptyFieldErrors}
+              fieldErrors={fieldErrors ?? {}}
               name="port"
               label="Port"
               variant="outlined"
@@ -178,7 +166,7 @@ const MqttSettings = () => {
           </Grid>
           <Grid>
             <ValidatedTextField
-              fieldErrors={fieldErrors ?? emptyFieldErrors}
+              fieldErrors={fieldErrors ?? {}}
               name="base"
               label={LL.BASE_TOPIC()}
               variant="outlined"
@@ -219,7 +207,7 @@ const MqttSettings = () => {
           </Grid>
           <Grid>
             <ValidatedTextField
-              fieldErrors={fieldErrors ?? emptyFieldErrors}
+              fieldErrors={fieldErrors ?? {}}
               name="keep_alive"
               label="Keep Alive"
               slotProps={{
@@ -438,7 +426,7 @@ const MqttSettings = () => {
             <Grid key={field.name}>
               {field.validated ? (
                 <ValidatedTextField
-                  fieldErrors={fieldErrors ?? emptyFieldErrors}
+                  fieldErrors={fieldErrors ?? {}}
                   name={field.name}
                   label={field.label}
                   slotProps={{

interface/src/app/settings/NTPSettings.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useMemo, useState } from 'react';
+import { useState } from 'react';
 import { toast } from 'react-toastify';
 
 import AccessTimeIcon from '@mui/icons-material/AccessTime';
@@ -36,7 +36,7 @@ import {
 import { useI18nContext } from 'i18n/i18n-react';
 import type { NTPSettingsType, Time } from 'types';
 import { formatLocalDateTime, updateValueDirty, useRest } from 'utils';
-import { validate } from 'validators';
+import { ValidationError, validate } from 'validators';
 import { NTP_SETTINGS_VALIDATOR } from 'validators/ntp';
 
 import { TIME_ZONES, selectedTimeZone, useTimeZoneSelectItems } from './TZ';
@@ -61,14 +61,11 @@ const NTPSettings = () => {
   const { LL } = useI18nContext();
   useLayoutTitle('NTP');
 
-  // Memoized timezone select items for better performance
   const timeZoneItems = useTimeZoneSelectItems();
 
-  // Memoized selected timezone value
-  const selectedTzValue = useMemo(
-    () => (data ? selectedTimeZone(data.tz_label, data.tz_format) : undefined),
-    [data?.tz_label, data?.tz_format]
-  );
+  const selectedTzValue = data
+    ? selectedTimeZone(data.tz_label, data.tz_format)
+    : undefined;
 
   const [localTime, setLocalTime] = useState<string>('');
   const [settingTime, setSettingTime] = useState<boolean>(false);
@@ -82,32 +79,22 @@ const NTPSettings = () => {
     }
   );
 
-  // Memoize updateFormValue to prevent recreation on every render
-  const updateFormValue = useMemo(
-    () =>
-      updateValueDirty(
-        origData as unknown as Record<string, unknown>,
-        dirtyFlags,
-        setDirtyFlags,
-        updateDataValue as (value: unknown) => void
-      ),
-    [origData, dirtyFlags, setDirtyFlags, updateDataValue]
+  const updateFormValue = updateValueDirty(
+    origData as unknown as Record<string, unknown>,
+    dirtyFlags,
+    setDirtyFlags,
+    updateDataValue as (value: unknown) => void
   );
 
-  // Memoize updateLocalTime handler
-  const updateLocalTime = useCallback(
-    (event: React.ChangeEvent<HTMLInputElement>) => setLocalTime(event.target.value),
-    []
-  );
+  const updateLocalTime = (event: React.ChangeEvent<HTMLInputElement>) =>
+    setLocalTime(event.target.value);
 
-  // Memoize openSetTime handler
-  const openSetTime = useCallback(() => {
+  const openSetTime = () => {
     setLocalTime(formatLocalDateTime(new Date()));
     setSettingTime(true);
-  }, []);
+  };
 
-  // Memoize configureTime handler
-  const configureTime = useCallback(async () => {
+  const configureTime = async () => {
     setProcessing(true);
 
     try {
@@ -120,38 +107,31 @@ const NTPSettings = () => {
     } finally {
       setProcessing(false);
     }
-  }, [localTime, updateTime, LL, loadData]);
+  };
 
-  // Memoize close dialog handler
-  const handleCloseSetTime = useCallback(() => setSettingTime(false), []);
+  const handleCloseSetTime = () => setSettingTime(false);
 
-  // Memoize validate and submit handler
-  const validateAndSubmit = useCallback(async () => {
+  const validateAndSubmit = async () => {
     if (!data) return;
     try {
       setFieldErrors(undefined);
       await validate(NTP_SETTINGS_VALIDATOR, data);
       await saveData();
     } catch (error) {
-      setFieldErrors(error as ValidateFieldsError);
+      setFieldErrors((error as ValidationError).fieldErrors);
     }
-  }, [data, saveData]);
+  };
 
-  // Memoize timezone change handler
-  const changeTimeZone = useCallback(
-    (event: React.ChangeEvent<HTMLInputElement>) => {
-      void updateState(readNTPSettings(), (settings: NTPSettingsType) => ({
-        ...settings,
-        tz_label: event.target.value,
-        tz_format: TIME_ZONES[event.target.value]
-      }));
-      updateFormValue(event);
-    },
-    [updateFormValue]
-  );
+  const changeTimeZone = (event: React.ChangeEvent<HTMLInputElement>) => {
+    void updateState(readNTPSettings(), (settings: NTPSettingsType) => ({
+      ...settings,
+      tz_label: event.target.value,
+      tz_format: TIME_ZONES[event.target.value]
+    }));
+    updateFormValue(event);
+  };
 
-  // Memoize render content to prevent unnecessary re-renders
-  const renderContent = useMemo(() => {
+  const renderContent = () => {
     if (!data) {
       return <FormLoader onRetry={loadData} errorMessage={errorMessage || ''} />;
     }
@@ -236,26 +216,12 @@ const NTPSettings = () => {
         )}
       </>
     );
-  }, [
-    data,
-    errorMessage,
-    loadData,
-    updateFormValue,
-    fieldErrors,
-    selectedTzValue,
-    changeTimeZone,
-    timeZoneItems,
-    dirtyFlags,
-    openSetTime,
-    saving,
-    validateAndSubmit,
-    LL
-  ]);
+  };
 
   return (
     <SectionContent>
       {blocker ? <BlockNavigation blocker={blocker} /> : null}
-      {renderContent}
+      {renderContent()}
       <Dialog sx={dialogStyle} open={settingTime} onClose={handleCloseSetTime}>
         <DialogTitle>{LL.SET_TIME(1)}</DialogTitle>
         <DialogContent dividers>

interface/src/app/settings/Settings.tsx

@@ -1,190 +1,108 @@
-import { useCallback, useMemo, useState } from 'react';
+import { useContext } from 'react';
 
 import AccessTimeIcon from '@mui/icons-material/AccessTime';
-import CancelIcon from '@mui/icons-material/Cancel';
+import BuildIcon from '@mui/icons-material/Build';
 import DeviceHubIcon from '@mui/icons-material/DeviceHub';
 import ImportExportIcon from '@mui/icons-material/ImportExport';
 import LockIcon from '@mui/icons-material/Lock';
-import SettingsBackupRestoreIcon from '@mui/icons-material/SettingsBackupRestore';
 import SettingsEthernetIcon from '@mui/icons-material/SettingsEthernet';
 import SettingsInputAntennaIcon from '@mui/icons-material/SettingsInputAntenna';
 import TuneIcon from '@mui/icons-material/Tune';
 import ViewModuleIcon from '@mui/icons-material/ViewModule';
-import {
-  Box,
-  Button,
-  Dialog,
-  DialogActions,
-  DialogContent,
-  DialogTitle,
-  Divider,
-  List
-} from '@mui/material';
+import { List } from '@mui/material';
 
-import { API } from 'api/app';
-
-import { dialogStyle } from 'CustomTheme';
-import { useRequest } from 'alova/client';
-import type { APIcall } from 'app/main/types';
 import { SectionContent, useLayoutTitle } from 'components';
 import ListMenuItem from 'components/layout/ListMenuItem';
+import { AuthenticatedContext } from 'contexts/authentication';
 import { useI18nContext } from 'i18n/i18n-react';
 
-import SystemMonitor from '../status/SystemMonitor';
-
 const Settings = () => {
   const { LL } = useI18nContext();
+  const { versions } = useContext(AuthenticatedContext);
   useLayoutTitle(LL.SETTINGS(0));
 
-  const [confirmFactoryReset, setConfirmFactoryReset] = useState(false);
-  const [restarting, setRestarting] = useState<boolean>();
+  const upgradeAvailable = versions?.current?.upgradeable ?? false;
+  const firmwareText = versions?.current?.version
+    ? `v${versions.current.version}${upgradeAvailable ? ` (${LL.UPDATE_AVAILABLE()})` : ''}`
+    : '';
 
-  const { send: sendAPI } = useRequest((data: APIcall) => API(data), {
-    immediate: false
-  });
+  return (
+    <SectionContent>
+      <List>
+        <ListMenuItem
+          icon={BuildIcon}
+          bgcolor="#72caf9"
+          label="EMS-ESP Firmware"
+          text={firmwareText}
+          to="/settings/version"
+          badge={upgradeAvailable}
+        />
 
-  const doFormat = useCallback(async () => {
-    await sendAPI({ device: 'system', cmd: 'format', id: 0 }).then(() => {
-      setRestarting(true);
-      setConfirmFactoryReset(false);
-    });
-  }, [sendAPI]);
+        <ListMenuItem
+          icon={TuneIcon}
+          bgcolor="#134ba2"
+          label={LL.APPLICATION()}
+          text={LL.APPLICATION_SETTINGS_1()}
+          to="application"
+        />
 
-  const handleFactoryResetClose = useCallback(() => {
-    setConfirmFactoryReset(false);
-  }, []);
+        <ListMenuItem
+          icon={SettingsEthernetIcon}
+          bgcolor="#40828f"
+          label={LL.NETWORK(0)}
+          text={LL.CONFIGURE(LL.SETTINGS_OF(LL.NETWORK(1)))}
+          to="network"
+        />
 
-  const handleFactoryResetClick = useCallback(() => {
-    setConfirmFactoryReset(true);
-  }, []);
+        <ListMenuItem
+          icon={SettingsInputAntennaIcon}
+          bgcolor="#5f9a5f"
+          label={LL.ACCESS_POINT(0)}
+          text={LL.CONFIGURE(LL.ACCESS_POINT(1))}
+          to="ap"
+        />
 
-  const content = useMemo(() => {
-    return (
-      <>
-        <List>
-          <ListMenuItem
-            icon={TuneIcon}
-            bgcolor="#134ba2"
-            label={LL.APPLICATION()}
-            text={LL.APPLICATION_SETTINGS_1()}
-            to="application"
-          />
+        <ListMenuItem
+          icon={AccessTimeIcon}
+          bgcolor="#c5572c"
+          label="NTP"
+          text={LL.CONFIGURE(LL.LOCAL_TIME(1))}
+          to="ntp"
+        />
 
-          <ListMenuItem
-            icon={SettingsEthernetIcon}
-            bgcolor="#40828f"
-            label={LL.NETWORK(0)}
-            text={LL.CONFIGURE(LL.SETTINGS_OF(LL.NETWORK(1)))}
-            to="network"
-          />
+        <ListMenuItem
+          icon={DeviceHubIcon}
+          bgcolor="#68374d"
+          label="MQTT"
+          text={LL.CONFIGURE('MQTT')}
+          to="mqtt"
+        />
 
-          <ListMenuItem
-            icon={SettingsInputAntennaIcon}
-            bgcolor="#5f9a5f"
-            label={LL.ACCESS_POINT(0)}
-            text={LL.CONFIGURE(LL.ACCESS_POINT(1))}
-            to="ap"
-          />
+        <ListMenuItem
+          icon={LockIcon}
+          label={LL.SECURITY(0)}
+          text={LL.SECURITY_1()}
+          to="security"
+        />
 
-          <ListMenuItem
-            icon={AccessTimeIcon}
-            bgcolor="#c5572c"
-            label="NTP"
-            text={LL.CONFIGURE(LL.LOCAL_TIME(1))}
-            to="ntp"
-          />
+        <ListMenuItem
+          icon={ViewModuleIcon}
+          bgcolor="#efc34b"
+          label={LL.MODULES()}
+          text={LL.MODULES_1()}
+          to="modules"
+        />
 
-          <ListMenuItem
-            icon={DeviceHubIcon}
-            bgcolor="#68374d"
-            label="MQTT"
-            text={LL.CONFIGURE('MQTT')}
-            to="mqtt"
-          />
-
-          <ListMenuItem
-            icon={LockIcon}
-            label={LL.SECURITY(0)}
-            text={LL.SECURITY_1()}
-            to="security"
-          />
-
-          <ListMenuItem
-            icon={ViewModuleIcon}
-            bgcolor="#efc34b"
-            label={LL.MODULES()}
-            text={LL.MODULES_1()}
-            to="modules"
-          />
-
-          <ListMenuItem
-            icon={ImportExportIcon}
-            bgcolor="#5d89f7"
-            label={LL.DOWNLOAD_UPLOAD()}
-            text={LL.DOWNLOAD_UPLOAD_1()}
-            to="downloadUpload"
-          />
-        </List>
-
-        <Dialog
-          sx={dialogStyle}
-          open={confirmFactoryReset}
-          onClose={handleFactoryResetClose}
-        >
-          <DialogTitle>{LL.FACTORY_RESET()}</DialogTitle>
-          <DialogContent dividers>{LL.SYSTEM_FACTORY_TEXT_DIALOG()}</DialogContent>
-          <DialogActions>
-            <Button
-              startIcon={<CancelIcon />}
-              variant="outlined"
-              onClick={handleFactoryResetClose}
-              color="secondary"
-            >
-              {LL.CANCEL()}
-            </Button>
-            <Button
-              startIcon={<SettingsBackupRestoreIcon />}
-              variant="outlined"
-              onClick={doFormat}
-              color="error"
-            >
-              {LL.FACTORY_RESET()}
-            </Button>
-          </DialogActions>
-        </Dialog>
-
-        <Divider />
-
-        <Box
-          sx={{
-            mt: 2,
-            display: 'flex',
-            justifyContent: 'flex-end',
-            flexWrap: 'nowrap',
-            whiteSpace: 'nowrap'
-          }}
-        >
-          <Button
-            startIcon={<SettingsBackupRestoreIcon />}
-            variant="outlined"
-            onClick={handleFactoryResetClick}
-            color="error"
-          >
-            {LL.FACTORY_RESET()}
-          </Button>
-        </Box>
-      </>
-    );
-  }, [
-    LL,
-    handleFactoryResetClick,
-    handleFactoryResetClose,
-    doFormat,
-    confirmFactoryReset,
-    restarting
-  ]);
-
-  return restarting ? <SystemMonitor /> : <SectionContent>{content}</SectionContent>;
+        <ListMenuItem
+          icon={ImportExportIcon}
+          bgcolor="#5d89f7"
+          label={LL.DOWNLOAD_UPLOAD()}
+          text={LL.DOWNLOAD_UPLOAD_1()}
+          to="downloadUpload"
+        />
+      </List>
+    </SectionContent>
+  );
 };
 
 export default Settings;

interface/src/app/settings/TZ.tsx

@@ -1,5 +1,3 @@
-import { useMemo } from 'react';
-
 import { MenuItem } from '@mui/material';
 
 export const TIME_ZONES: Record<string, string> = {
@@ -472,26 +470,16 @@ export function selectedTimeZone(label: string, format: string) {
   return TIME_ZONES[label] === format ? label : undefined;
 }
 
-// Memoized version for use in components
-export function useTimeZoneSelectItems() {
-  return useMemo(
-    () =>
-      TIME_ZONE_LABELS.map((label) => (
-        <MenuItem key={label} value={label}>
-          {label}
-        </MenuItem>
-      )),
-    []
-  );
-}
-
-// Fallback export for backward compatibility - now memoized
 const precomputedTimeZoneItems = TIME_ZONE_LABELS.map((label) => (
   <MenuItem key={label} value={label}>
     {label}
   </MenuItem>
 ));
 
+export function useTimeZoneSelectItems() {
+  return precomputedTimeZoneItems;
+}
+
 export function timeZoneSelectItems() {
   return precomputedTimeZoneItems;
 }

interface/src/app/settings/Version.tsx

@@ -0,0 +1,958 @@
+import { memo, useContext, useMemo, useState } from 'react';
+import { Link } from 'react-router';
+import { toast } from 'react-toastify';
+
+import CancelIcon from '@mui/icons-material/Cancel';
+import CloseIcon from '@mui/icons-material/Close';
+import CheckIcon from '@mui/icons-material/Done';
+import DownloadIcon from '@mui/icons-material/GetApp';
+import InfoOutlinedIcon from '@mui/icons-material/InfoOutlined';
+import PowerSettingsNewIcon from '@mui/icons-material/PowerSettingsNew';
+import SettingsBackupRestoreIcon from '@mui/icons-material/SettingsBackupRestore';
+import WarningIcon from '@mui/icons-material/Warning';
+import {
+  Box,
+  Button,
+  Dialog,
+  DialogActions,
+  DialogContent,
+  DialogTitle,
+  Grid,
+  IconButton,
+  Table,
+  TableBody,
+  TableCell,
+  TableRow,
+  Typography
+} from '@mui/material';
+
+import * as SystemApi from 'api/system';
+import { API, callAction } from 'api/app';
+
+import { dialogStyle } from 'CustomTheme';
+import { useRequest } from 'alova/client';
+import type { APIcall } from 'app/main/types';
+import SystemMonitor from 'app/status/SystemMonitor';
+import {
+  FormLoader,
+  SectionContent,
+  SingleUpload,
+  useLayoutTitle
+} from 'components';
+import { AuthenticatedContext } from 'contexts/authentication';
+import { useI18nContext } from 'i18n/i18n-react';
+import type { TranslationFunctions } from 'i18n/i18n-types';
+import type { VersionInfo } from 'types';
+import { prettyDateTime } from 'utils/time';
+
+// Constants moved outside component to avoid recreation
+const STABLE_URL = 'https://github.com/emsesp/EMS-ESP32/releases/download/';
+const STABLE_RELNOTES_URL =
+  'https://github.com/emsesp/EMS-ESP32/blob/main/CHANGELOG.md';
+const DEV_URL = 'https://github.com/emsesp/EMS-ESP32/releases/download/latest/';
+const DEV_RELNOTES_URL =
+  'https://github.com/emsesp/EMS-ESP32/blob/dev/CHANGELOG_LATEST.md';
+
+// Types for better type safety
+interface PartitionData {
+  partition: string;
+  version: string;
+  install_date?: string;
+  size: number;
+}
+
+interface VersionData {
+  emsesp_version: string;
+  arduino_version: string;
+  esp_platform: string;
+  flash_chip_size: number;
+  psram: boolean;
+  build_flags?: string;
+  partition: string;
+  partitions: PartitionData[];
+  developer_mode: boolean;
+}
+
+// Memoized components for better performance
+const VersionInfoDialog = memo(
+  ({
+    showVersionInfo,
+    latestVersion,
+    latestDevVersion,
+    partitionVersion,
+    partition,
+    currentPartition,
+    size,
+    locale,
+    LL,
+    onClose
+  }: {
+    showVersionInfo: number;
+    latestVersion: VersionInfo | undefined;
+    latestDevVersion: VersionInfo | undefined;
+    partitionVersion: VersionInfo | undefined;
+    partition: string;
+    currentPartition: string;
+    size: number;
+    locale: string;
+    LL: TranslationFunctions;
+    onClose: () => void;
+  }) => {
+    if (showVersionInfo === 0) return null;
+
+    const isStable = showVersionInfo === 1;
+    const isDev = showVersionInfo === 2;
+    const isPartition = showVersionInfo === 3;
+
+    const version = isStable
+      ? latestVersion
+      : isDev
+        ? latestDevVersion
+        : partitionVersion;
+    const relNotesUrl = isStable
+      ? STABLE_RELNOTES_URL
+      : isDev
+        ? DEV_RELNOTES_URL
+        : '';
+
+    return (
+      <Dialog sx={dialogStyle} open={showVersionInfo !== 0} onClose={onClose}>
+        <DialogTitle>{LL.FIRMWARE_VERSION_INFO()}</DialogTitle>
+        <DialogContent dividers>
+          <Table size="small" sx={{ borderCollapse: 'collapse', minWidth: 0 }}>
+            <TableBody>
+              <TableRow sx={{ height: 24, borderBottom: 'none' }}>
+                <TableCell
+                  component="th"
+                  scope="row"
+                  sx={{
+                    color: 'lightblue',
+                    borderBottom: 'none',
+                    pr: 1,
+                    py: 0.5,
+                    fontSize: 13
+                  }}
+                >
+                  {LL.VERSION()}
+                </TableCell>
+                <TableCell sx={{ borderBottom: 'none', py: 0.5, fontSize: 13 }}>
+                  {isPartition
+                    ? typeof version === 'string'
+                      ? version
+                      : version?.version
+                    : version?.version}
+                </TableCell>
+              </TableRow>
+              <TableRow sx={{ height: 24, borderBottom: 'none' }}>
+                <TableCell
+                  component="th"
+                  scope="row"
+                  sx={{
+                    color: 'lightblue',
+                    borderBottom: 'none',
+                    pr: 1,
+                    py: 0.5,
+                    fontSize: 13,
+                    width: 140
+                  }}
+                >
+                  {isPartition ? LL.TYPE(0) : LL.RELEASE_TYPE()}
+                </TableCell>
+                <TableCell sx={{ borderBottom: 'none', py: 0.5, fontSize: 13 }}>
+                  {partition === currentPartition && LL.ACTIVE() + ' '}
+                  {isStable
+                    ? LL.STABLE()
+                    : isDev
+                      ? LL.DEVELOPMENT()
+                      : 'Partition ' + LL.VERSION()}
+                </TableCell>
+              </TableRow>
+              {isPartition && (
+                <TableRow sx={{ height: 24, borderBottom: 'none' }}>
+                  <TableCell
+                    component="th"
+                    scope="row"
+                    sx={{
+                      color: 'lightblue',
+                      borderBottom: 'none',
+                      pr: 1,
+                      py: 0.5,
+                      fontSize: 13
+                    }}
+                  >
+                    Partition
+                  </TableCell>
+                  <TableCell sx={{ borderBottom: 'none', py: 0.5, fontSize: 13 }}>
+                    {partition}
+                  </TableCell>
+                </TableRow>
+              )}
+              {isPartition && (
+                <TableRow sx={{ height: 24, borderBottom: 'none' }}>
+                  <TableCell
+                    component="th"
+                    scope="row"
+                    sx={{
+                      color: 'lightblue',
+                      borderBottom: 'none',
+                      pr: 1,
+                      py: 0.5,
+                      fontSize: 13
+                    }}
+                  >
+                    Size
+                  </TableCell>
+                  <TableCell sx={{ borderBottom: 'none', py: 0.5, fontSize: 13 }}>
+                    {size} KB
+                  </TableCell>
+                </TableRow>
+              )}
+              {version && version.date && (
+                <TableRow sx={{ height: 24, borderBottom: 'none' }}>
+                  <TableCell
+                    component="th"
+                    scope="row"
+                    sx={{
+                      color: 'lightblue',
+                      borderBottom: 'none',
+                      pr: 1,
+                      py: 0.5,
+                      fontSize: 13
+                    }}
+                  >
+                    {isPartition ? 'Install Date' : 'Build Date'}
+                  </TableCell>
+                  <TableCell sx={{ borderBottom: 'none', py: 0.5, fontSize: 13 }}>
+                    {prettyDateTime(locale, new Date(version.date))}
+                  </TableCell>
+                </TableRow>
+              )}
+            </TableBody>
+          </Table>
+        </DialogContent>
+        <DialogActions>
+          {!isPartition && (
+            <Button
+              variant="outlined"
+              component="a"
+              href={relNotesUrl}
+              target="_blank"
+              color="primary"
+            >
+              Changelog
+            </Button>
+          )}
+          <Button variant="outlined" onClick={onClose} color="secondary">
+            {LL.CLOSE()}
+          </Button>
+        </DialogActions>
+      </Dialog>
+    );
+  }
+);
+
+const InstallDialog = memo(
+  ({
+    openInstallDialog,
+    fetchDevVersion,
+    latestVersion,
+    latestDevVersion,
+    upgradeImportantMessageType,
+    downloadOnly,
+    platform,
+    LL,
+    onClose,
+    onInstall
+  }: {
+    openInstallDialog: boolean;
+    fetchDevVersion: boolean;
+    latestVersion: VersionInfo | undefined;
+    latestDevVersion: VersionInfo | undefined;
+    upgradeImportantMessageType: number;
+    downloadOnly: boolean;
+    platform: string;
+    LL: TranslationFunctions;
+    onClose: () => void;
+    onInstall: (url: string) => void;
+  }) => {
+    const binURL = (() => {
+      if (!latestVersion || !latestDevVersion) return '';
+      const version = fetchDevVersion ? latestDevVersion : latestVersion;
+      const filename = `EMS-ESP-${version.version.replaceAll('.', '_')}-${platform}.bin`;
+      return fetchDevVersion
+        ? `${DEV_URL}${filename}`
+        : `${STABLE_URL}v${version.version}/${filename}`;
+    })();
+
+    return (
+      <Dialog sx={dialogStyle} open={openInstallDialog} onClose={onClose}>
+        <DialogTitle>
+          {`${LL.INSTALL()} ${fetchDevVersion ? LL.DEVELOPMENT() : LL.STABLE()} Firmware`}
+        </DialogTitle>
+        <DialogContent dividers>
+          <Typography sx={{ mb: 2 }}>
+            {LL.INSTALL_VERSION(
+              downloadOnly ? LL.DOWNLOAD(1) : LL.INSTALL(),
+              fetchDevVersion ? latestDevVersion?.version : latestVersion?.version
+            )}
+          </Typography>
+          {upgradeImportantMessageType === 2 && LL.UPGRADE_IMPORTANT_MESSAGES_2()}
+          {upgradeImportantMessageType === 1 && (
+            <>
+              {LL.UPGRADE_IMPORTANT_MESSAGES_1()}
+              <Typography sx={{ mt: 2 }}>
+                <Link to="/settings/downloadUpload" style={{ color: 'lightblue' }}>
+                  {LL.DOWNLOAD_SYSTEM_BACKUP()}
+                </Link>
+              </Typography>
+            </>
+          )}
+          <Typography sx={{ mt: 2 }}>
+            <Link
+              to="https://docs.emsesp.org/FAQ#upgrading-the-firmware"
+              target="_blank"
+              rel="noreferrer"
+              style={{ color: 'lightblue' }}
+            >
+              {LL.ONLINE_HELP()}
+            </Link>
+          </Typography>
+        </DialogContent>
+        <DialogActions>
+          <Button
+            startIcon={<CancelIcon />}
+            variant="outlined"
+            onClick={onClose}
+            color="secondary"
+          >
+            {LL.CANCEL()}
+          </Button>
+          <Button
+            startIcon={<DownloadIcon />}
+            variant="outlined"
+            onClick={onClose}
+            color="primary"
+          >
+            <Link
+              to={binURL}
+              target="_blank"
+              rel="noreferrer"
+              style={{ color: 'lightblue', textDecoration: 'none' }}
+            >
+              {LL.DOWNLOAD(0)}
+            </Link>
+          </Button>
+          {!downloadOnly && (
+            <Button
+              startIcon={<WarningIcon color="warning" />}
+              variant="outlined"
+              onClick={() => onInstall(binURL)}
+              color="primary"
+            >
+              {LL.INSTALL()}
+            </Button>
+          )}
+        </DialogActions>
+      </Dialog>
+    );
+  }
+);
+
+const InstallPartitionDialog = memo(
+  ({
+    openInstallPartitionDialog,
+    version,
+    partition,
+    LL,
+    onClose,
+    onInstall
+  }: {
+    openInstallPartitionDialog: boolean;
+    version: string;
+    partition: string;
+    LL: TranslationFunctions;
+    onClose: () => void;
+    onInstall: (partition: string) => void;
+  }) => {
+    return (
+      <Dialog sx={dialogStyle} open={openInstallPartitionDialog} onClose={onClose}>
+        <DialogTitle>
+          {LL.INSTALL()} {LL.STORED_VERSIONS()}
+        </DialogTitle>
+        <DialogContent dividers>
+          <Typography sx={{ mb: 2 }}>
+            {LL.INSTALL_VERSION(LL.INSTALL(), version)}
+          </Typography>
+        </DialogContent>
+        <DialogActions>
+          <Button
+            startIcon={<CancelIcon />}
+            variant="outlined"
+            onClick={onClose}
+            color="secondary"
+          >
+            {LL.CANCEL()}
+          </Button>
+
+          <Button
+            startIcon={<WarningIcon color="warning" />}
+            variant="outlined"
+            onClick={() => onInstall(partition)}
+            color="primary"
+          >
+            {LL.INSTALL()}
+          </Button>
+        </DialogActions>
+      </Dialog>
+    );
+  }
+);
+
+// Helper function moved outside component
+const getPlatform = (data: VersionData): string => {
+  return `${data.esp_platform}-${data.flash_chip_size >= 16384 ? '16MB' : '4MB'}${data.psram ? '+' : ''}`;
+};
+
+const Version = () => {
+  const { LL, locale } = useI18nContext();
+  const { me, versions } = useContext(AuthenticatedContext);
+
+  const [restarting, setRestarting] = useState<boolean>(false);
+  const [confirmFactoryReset, setConfirmFactoryReset] = useState<boolean>(false);
+  const [confirmRestart, setConfirmRestart] = useState<boolean>(false);
+  const [openInstallDialog, setOpenInstallDialog] = useState<boolean>(false);
+
+  const [partitionVersion, setPartitionVersion] = useState<VersionInfo | undefined>(
+    undefined
+  );
+  const [partition, setPartition] = useState<string>('');
+  const [openInstallPartitionDialog, setOpenInstallPartitionDialog] =
+    useState<boolean>(false);
+
+  const [fetchDevVersion, setFetchDevVersion] = useState<boolean>(false);
+  const [downloadOnly, setDownloadOnly] = useState<boolean>(false);
+  const [showVersionInfo, setShowVersionInfo] = useState<number>(0); // 1 = stable, 2 = dev, 3 = partition
+  const [firmwareSize, setFirmwareSize] = useState<number>(0);
+
+  const latestVersion = useMemo<VersionInfo | undefined>(
+    () =>
+      versions?.stable
+        ? { version: versions.stable.version, date: versions.stable.date }
+        : undefined,
+    [versions?.stable]
+  );
+  const latestDevVersion = useMemo<VersionInfo | undefined>(
+    () =>
+      versions?.dev
+        ? { version: versions.dev.version, date: versions.dev.date }
+        : undefined,
+    [versions?.dev]
+  );
+  const usingDevVersion = versions?.current?.type === 'dev';
+  const stableUpgradeAvailable = versions?.stable?.upgradeable ?? false;
+  const devUpgradeAvailable = versions?.dev?.upgradeable ?? false;
+  const internetLive = Boolean(versions?.stable || versions?.dev);
+
+  const { send: sendSetPartition } = useRequest(
+    (partition: string) => callAction({ action: 'setPartition', param: partition }),
+    { immediate: false }
+  ).onError((error) => {
+    toast.error(String(error.error?.message || 'An error occurred'));
+  });
+
+  const {
+    data,
+    send: loadData,
+    error
+  } = useRequest(SystemApi.readSystemStatus).onSuccess((event) => {
+    const systemData = event.data as VersionData;
+    if (systemData.arduino_version.startsWith('Tasmota')) {
+      setDownloadOnly(true);
+    }
+  });
+
+  const { send: sendUploadURL } = useRequest(
+    (url: string) => callAction({ action: 'uploadURL', param: url }),
+    { immediate: false }
+  );
+
+  const { send: sendAPI } = useRequest((data: APIcall) => API(data), {
+    immediate: false
+  });
+
+  const [upgradeImportantMessageType, setUpgradeImportantMessageType] =
+    useState<number>(0);
+
+  const { send: checkUpgradeImportantMessages } = useRequest(
+    (version: string) =>
+      callAction({ action: 'upgradeImportantMessages', param: version }),
+    {
+      immediate: false
+    }
+  )
+    .onSuccess((event) => {
+      const upgradeImportantMessageType_n = (
+        event.data as { upgradeImportantMessageType: number }
+      ).upgradeImportantMessageType;
+      setUpgradeImportantMessageType(upgradeImportantMessageType_n);
+    })
+    .onError((error) => {
+      toast.error(String(error.error?.message || 'An error occurred'));
+    });
+
+  const platform = data ? getPlatform(data) : '';
+
+  const otherPartitions =
+    data?.partitions.filter((p) => p.partition !== data.partition) ?? [];
+
+  const setPartitionVersionInfo = (partition: string) => {
+    setShowVersionInfo(3);
+    const partitionData = data?.partitions.find((p) => p.partition === partition);
+    if (partitionData) {
+      setPartitionVersion({
+        version: partitionData.version,
+        date: partitionData.install_date ?? ''
+      });
+      setPartition(partitionData.partition);
+      setFirmwareSize(partitionData.size);
+    }
+  };
+
+  const doRestart = async () => {
+    setConfirmRestart(false);
+    await sendAPI({ device: 'system', cmd: 'restart', id: 0 }).catch(
+      (error: Error) => {
+        toast.error(error.message);
+      }
+    );
+    setRestarting(true);
+  };
+
+  const doFormat = async () => {
+    await sendAPI({ device: 'system', cmd: 'format', id: 0 }).then(() => {
+      setRestarting(true);
+      setConfirmFactoryReset(false);
+    });
+  };
+
+  const handleFactoryResetClose = () => setConfirmFactoryReset(false);
+  const handleFactoryResetClick = () => setConfirmFactoryReset(true);
+  const handleRestartClose = () => setConfirmRestart(false);
+  const handleRestartClick = () => setConfirmRestart(true);
+
+  const installFirmwareURL = async (url: string) => {
+    await sendUploadURL(url).catch((error: Error) => {
+      toast.error(error.message);
+    });
+    await doRestart();
+  };
+
+  const installPartitionFirmware = async (partition: string) => {
+    await sendSetPartition(partition).catch((error: Error) => {
+      toast.error(error.message);
+    });
+    setRestarting(true);
+  };
+
+  const showPartitionDialog = (
+    version: string,
+    partition: string,
+    install_date: string
+  ) => {
+    setOpenInstallPartitionDialog(true);
+    setPartitionVersion({ version: version, date: install_date });
+    setPartition(partition);
+  };
+
+  const showFirmwareDialog = (useDevVersion: boolean) => {
+    setFetchDevVersion(useDevVersion);
+    const targetVersion = useDevVersion
+      ? latestDevVersion?.version
+      : latestVersion?.version;
+    if (targetVersion) {
+      void checkUpgradeImportantMessages(targetVersion);
+    }
+    setOpenInstallDialog(true);
+  };
+
+  const closeInstallDialog = () => setOpenInstallDialog(false);
+  const closeInstallPartitionDialog = () => setOpenInstallPartitionDialog(false);
+
+  const handleVersionInfoClose = () => {
+    setShowVersionInfo(0);
+    setPartitionVersion(undefined);
+    setPartition('');
+  };
+
+  useLayoutTitle('EMS-ESP Firmware');
+
+  const showButtons = (showingDev: boolean) => {
+    const choice = showingDev
+      ? !usingDevVersion
+        ? LL.SWITCH_RELEASE_TYPE(LL.DEVELOPMENT())
+        : devUpgradeAvailable
+          ? LL.UPDATE_AVAILABLE()
+          : undefined
+      : usingDevVersion
+        ? LL.SWITCH_RELEASE_TYPE(LL.STABLE())
+        : stableUpgradeAvailable
+          ? LL.UPDATE_AVAILABLE()
+          : undefined;
+
+    if (!choice) {
+      return (
+        <>
+          <CheckIcon
+            color="success"
+            sx={{ verticalAlign: 'middle', ml: 0.5, mr: 0.5 }}
+          />
+          <span style={{ color: '#66bb6a', fontSize: '0.8em' }}>
+            {LL.LATEST_VERSION(usingDevVersion ? LL.DEVELOPMENT() : LL.STABLE())}
+          </span>
+          <Button
+            sx={{ ml: 1 }}
+            variant="outlined"
+            size="small"
+            onClick={() => showFirmwareDialog(showingDev)}
+          >
+            {LL.REINSTALL()}
+          </Button>
+        </>
+      );
+    }
+
+    if (!me.admin) return null;
+
+    const isUpdateAvailable = choice === LL.UPDATE_AVAILABLE();
+
+    return (
+      <Button
+        sx={{ ml: 1 }}
+        variant="outlined"
+        color={isUpdateAvailable ? 'success' : 'warning'}
+        size="small"
+        onClick={() => showFirmwareDialog(showingDev)}
+      >
+        {choice}
+        {isUpdateAvailable && (
+          <Box
+            component="span"
+            aria-label="update available"
+            sx={{
+              display: 'inline-block',
+              width: 8,
+              height: 8,
+              ml: 1,
+              verticalAlign: 'middle',
+              borderRadius: '50%',
+              backgroundColor: '#ffeb3b',
+              boxShadow: '0 0 6px rgba(255, 235, 59, 0.8)'
+            }}
+          />
+        )}
+      </Button>
+    );
+  };
+
+  if (restarting) {
+    return <SystemMonitor />;
+  }
+
+  if (!data) {
+    return (
+      <SectionContent>
+        <FormLoader onRetry={loadData} errorMessage={error?.message || ''} />
+      </SectionContent>
+    );
+  }
+
+  return (
+    <SectionContent>
+      <Box sx={{ p: 2, border: '1px solid #565656', borderRadius: 2 }}>
+        <Typography sx={{ mb: 1 }} variant="h6" color="primary">
+          {LL.THIS_VERSION()}
+        </Typography>
+
+        <Grid
+          container
+          direction="row"
+          sx={{
+            justifyContent: 'flex-start',
+            alignItems: 'baseline'
+          }}
+        >
+          <Grid size={{ xs: 4, md: 2 }}>
+            <Typography color="secondary">{LL.VERSION()}</Typography>
+          </Grid>
+          <Grid size={{ xs: 8, md: 10 }}>
+            <Typography>
+              {data.emsesp_version}
+              {data.build_flags && (
+                <Typography variant="caption">
+                  &nbsp; &#40;{data.build_flags}&#41;
+                </Typography>
+              )}
+              <IconButton
+                onClick={() => setPartitionVersionInfo(data.partition)}
+                aria-label={LL.FIRMWARE_VERSION_INFO()}
+              >
+                <InfoOutlinedIcon color="primary" sx={{ fontSize: 18 }} />
+              </IconButton>
+            </Typography>
+          </Grid>
+
+          <Grid size={{ xs: 4, md: 2 }}>
+            <Typography color="secondary">{LL.PLATFORM()}</Typography>
+          </Grid>
+          <Grid size={{ xs: 8, md: 10 }}>
+            <Typography>
+              {platform}
+              <Typography variant="caption">
+                &nbsp; &#40;
+                {data.psram ? (
+                  <CheckIcon
+                    color="success"
+                    sx={{
+                      fontSize: '1.5em',
+                      verticalAlign: 'middle'
+                    }}
+                  />
+                ) : (
+                  <CloseIcon
+                    color="error"
+                    sx={{
+                      fontSize: '1.5em',
+                      verticalAlign: 'middle'
+                    }}
+                  />
+                )}
+                PSRAM&#41;
+              </Typography>
+            </Typography>
+          </Grid>
+        </Grid>
+
+        {internetLive ? (
+          <>
+            <Typography sx={{ mt: 4, mb: 1 }} variant="h6" color="primary">
+              {LL.AVAILABLE_VERSION()}
+            </Typography>
+
+            <Grid
+              container
+              direction="row"
+              rowSpacing={1}
+              sx={{
+                justifyContent: 'flex-start',
+                alignItems: 'baseline'
+              }}
+            >
+              {otherPartitions.length > 0 && data.developer_mode && (
+                <>
+                  <Grid size={{ xs: 4, md: 2 }}>
+                    <Typography color="secondary">{LL.STORED_VERSIONS()}</Typography>
+                  </Grid>
+                  <Grid size={{ xs: 8, md: 10 }}>
+                    {otherPartitions.map((partition) => (
+                      <Typography key={partition.partition} sx={{ mb: 1 }}>
+                        {partition.version}
+                        <IconButton
+                          onClick={() =>
+                            setPartitionVersionInfo(partition.partition)
+                          }
+                          aria-label={LL.FIRMWARE_VERSION_INFO()}
+                        >
+                          <InfoOutlinedIcon color="primary" sx={{ fontSize: 18 }} />
+                        </IconButton>
+                        <Button
+                          sx={{ ml: 0 }}
+                          variant="outlined"
+                          size="small"
+                          onClick={() =>
+                            showPartitionDialog(
+                              partition.version,
+                              partition.partition,
+                              partition.install_date ?? ''
+                            )
+                          }
+                        >
+                          {LL.INSTALL()}
+                        </Button>
+                      </Typography>
+                    ))}
+                  </Grid>
+                </>
+              )}
+              <Grid size={{ xs: 4, md: 2 }}>
+                <Typography color="secondary">{LL.STABLE()}</Typography>
+              </Grid>
+              <Grid size={{ xs: 8, md: 10 }}>
+                <Typography>
+                  {latestVersion?.version}
+                  <IconButton
+                    onClick={() => setShowVersionInfo(1)}
+                    aria-label={LL.FIRMWARE_VERSION_INFO()}
+                  >
+                    <InfoOutlinedIcon color="primary" sx={{ fontSize: 18 }} />
+                  </IconButton>
+                  {showButtons(false)}
+                </Typography>
+              </Grid>
+
+              <Grid size={{ xs: 4, md: 2 }}>
+                <Typography color="secondary">{LL.DEVELOPMENT()}</Typography>
+              </Grid>
+              <Grid size={{ xs: 8, md: 10 }}>
+                <Typography>
+                  {latestDevVersion?.version}
+                  <IconButton
+                    onClick={() => setShowVersionInfo(2)}
+                    aria-label={LL.FIRMWARE_VERSION_INFO()}
+                  >
+                    <InfoOutlinedIcon color="primary" sx={{ fontSize: 18 }} />
+                  </IconButton>
+                  {showButtons(true)}
+                </Typography>
+              </Grid>
+            </Grid>
+          </>
+        ) : (
+          <Typography sx={{ mt: 2 }} color="warning">
+            <WarningIcon color="warning" sx={{ verticalAlign: 'middle', mr: 2 }} />
+            {LL.INTERNET_CONNECTION_REQUIRED()}
+          </Typography>
+        )}
+        {me.admin && (
+          <>
+            <VersionInfoDialog
+              showVersionInfo={showVersionInfo}
+              latestVersion={latestVersion}
+              latestDevVersion={latestDevVersion}
+              partitionVersion={partitionVersion}
+              locale={locale}
+              partition={partition}
+              currentPartition={data?.partition ?? ''}
+              size={firmwareSize}
+              LL={LL}
+              onClose={handleVersionInfoClose}
+            />
+            <InstallDialog
+              openInstallDialog={openInstallDialog}
+              fetchDevVersion={fetchDevVersion}
+              latestVersion={latestVersion}
+              latestDevVersion={latestDevVersion}
+              upgradeImportantMessageType={upgradeImportantMessageType}
+              downloadOnly={downloadOnly}
+              platform={platform}
+              LL={LL}
+              onClose={closeInstallDialog}
+              onInstall={installFirmwareURL}
+            />
+            <InstallPartitionDialog
+              openInstallPartitionDialog={openInstallPartitionDialog}
+              version={partitionVersion?.version || ''}
+              partition={partition}
+              LL={LL}
+              onClose={closeInstallPartitionDialog}
+              onInstall={installPartitionFirmware}
+            />
+            <Typography sx={{ pt: 2, pb: 2 }} variant="h6" color="primary">
+              {LL.UPLOAD()}
+            </Typography>
+            <SingleUpload doRestart={doRestart} />
+          </>
+        )}
+      </Box>
+
+      {me.admin && (
+        <>
+          <Dialog
+            sx={dialogStyle}
+            open={confirmFactoryReset}
+            onClose={handleFactoryResetClose}
+          >
+            <DialogTitle>{LL.FACTORY_RESET()}</DialogTitle>
+            <DialogContent dividers>{LL.SYSTEM_FACTORY_TEXT_DIALOG()}</DialogContent>
+            <DialogActions>
+              <Button
+                startIcon={<CancelIcon />}
+                variant="outlined"
+                onClick={handleFactoryResetClose}
+                color="secondary"
+              >
+                {LL.CANCEL()}
+              </Button>
+              <Button
+                startIcon={<SettingsBackupRestoreIcon />}
+                variant="outlined"
+                onClick={doFormat}
+                color="error"
+              >
+                {LL.FACTORY_RESET()}
+              </Button>
+            </DialogActions>
+          </Dialog>
+
+          <Dialog
+            sx={dialogStyle}
+            open={confirmRestart}
+            onClose={handleRestartClose}
+          >
+            <DialogTitle>{LL.RESTART()}</DialogTitle>
+            <DialogContent dividers>{LL.RESTART_CONFIRM()}</DialogContent>
+            <DialogActions>
+              <Button
+                startIcon={<CancelIcon />}
+                variant="outlined"
+                onClick={handleRestartClose}
+                color="secondary"
+              >
+                {LL.CANCEL()}
+              </Button>
+              <Button
+                startIcon={<PowerSettingsNewIcon />}
+                variant="outlined"
+                onClick={doRestart}
+                color="error"
+              >
+                {LL.RESTART()}
+              </Button>
+            </DialogActions>
+          </Dialog>
+
+          <Box
+            sx={{
+              mt: 2,
+              display: 'flex',
+              justifyContent: 'flex-end',
+              flexWrap: 'nowrap',
+              whiteSpace: 'nowrap',
+              gap: 1
+            }}
+          >
+            <Button
+              startIcon={<PowerSettingsNewIcon />}
+              variant="outlined"
+              onClick={handleRestartClick}
+              color="error"
+            >
+              {LL.RESTART()}
+            </Button>
+            {data.developer_mode && (
+              <Button
+                startIcon={<SettingsBackupRestoreIcon />}
+                variant="outlined"
+                onClick={handleFactoryResetClick}
+                color="error"
+              >
+                {LL.FACTORY_RESET()}
+              </Button>
+            )}
+          </Box>
+        </>
+      )}
+    </SectionContent>
+  );
+};
+
+export default memo(Version);

interface/src/app/settings/network/Network.tsx

@@ -1,4 +1,4 @@
-import { memo, useCallback, useMemo, useState } from 'react';
+import { memo, useState } from 'react';
 import {
   Navigate,
   Route,
@@ -40,26 +40,20 @@ const Network = () => {
 
   const [selectedNetwork, setSelectedNetwork] = useState<WiFiNetwork>();
 
-  const selectNetwork = useCallback(
-    (network: WiFiNetwork) => {
-      setSelectedNetwork(network);
-      void navigate('/settings/network/settings');
-    },
-    [navigate]
-  );
+  const selectNetwork = (network: WiFiNetwork) => {
+    setSelectedNetwork(network);
+    void navigate('/settings/network/settings');
+  };
 
-  const deselectNetwork = useCallback(() => {
+  const deselectNetwork = () => {
     setSelectedNetwork(undefined);
-  }, []);
+  };
 
-  const contextValue = useMemo(
-    () => ({
-      ...(selectedNetwork && { selectedNetwork }),
-      selectNetwork,
-      deselectNetwork
-    }),
-    [selectedNetwork, selectNetwork, deselectNetwork]
-  );
+  const contextValue = {
+    ...(selectedNetwork && { selectedNetwork }),
+    selectNetwork,
+    deselectNetwork
+  };
 
   return (
     <WiFiConnectionContext.Provider value={contextValue}>

interface/src/app/settings/network/NetworkSettings.tsx

@@ -40,7 +40,7 @@ import {
 import { useI18nContext } from 'i18n/i18n-react';
 import type { NetworkSettingsType } from 'types';
 import { updateValueDirty, useRest } from 'utils';
-import { validate } from 'validators';
+import { ValidationError, validate } from 'validators';
 import { createNetworkSettingsValidator } from 'validators/network';
 
 import SystemMonitor from '../../status/SystemMonitor';
@@ -116,24 +116,24 @@ const NetworkSettings = () => {
       await validate(createNetworkSettingsValidator(data), data);
       await saveData();
     } catch (error) {
-      setFieldErrors(error as ValidateFieldsError);
+      setFieldErrors((error as ValidationError).fieldErrors);
     }
     deselectNetwork();
   }, [data, saveData, deselectNetwork]);
 
-  const setCancel = useCallback(async () => {
+  const setCancel = async () => {
     deselectNetwork();
     await loadData();
-  }, [deselectNetwork, loadData]);
+  };
 
-  const doRestart = useCallback(async () => {
+  const doRestart = async () => {
     setRestarting(true);
     await sendAPI({ device: 'system', cmd: 'restart', id: 0 }).catch(
       (error: Error) => {
         toast.error(error.message);
       }
     );
-  }, [sendAPI]);
+  };
 
   const content = () => {
     if (!data) {

interface/src/app/settings/network/WiFiNetworkScanner.tsx

@@ -1,4 +1,4 @@
-import { memo, useCallback, useRef, useState } from 'react';
+import { memo, useRef, useState } from 'react';
 
 import PermScanWifiIcon from '@mui/icons-material/PermScanWifi';
 import { Button } from '@mui/material';
@@ -48,12 +48,12 @@ const WiFiNetworkScanner = () => {
     }
   });
 
-  const renderNetworkScanner = useCallback(() => {
+  const renderNetworkScanner = () => {
     if (!networkList) {
       return <FormLoader errorMessage={errorMessage || ''} />;
     }
     return <WiFiNetworkSelector networkList={networkList} />;
-  }, [networkList, errorMessage]);
+  };
 
   return (
     <SectionContent>

interface/src/app/settings/network/WiFiNetworkSelector.tsx

@@ -1,4 +1,4 @@
-import { memo, useCallback, useContext } from 'react';
+import { memo, useContext } from 'react';
 
 import LockIcon from '@mui/icons-material/Lock';
 import LockOpenIcon from '@mui/icons-material/LockOpen';
@@ -63,34 +63,31 @@ const WiFiNetworkSelector = ({ networkList }: { networkList: WiFiNetworkList })
 
   const wifiConnectionContext = useContext(WiFiConnectionContext);
 
-  const renderNetwork = useCallback(
-    (network: WiFiNetwork) => (
-      <ListItem
-        key={network.bssid}
-        onClick={() => wifiConnectionContext.selectNetwork(network)}
-      >
-        <ListItemAvatar>
-          <Avatar>{isNetworkOpen(network) ? <LockOpenIcon /> : <LockIcon />}</Avatar>
-        </ListItemAvatar>
-        <ListItemText
-          primary={network.ssid}
-          secondary={
-            'Security: ' +
-            networkSecurityMode(network) +
-            ', Ch: ' +
-            network.channel +
-            ', bssid: ' +
-            network.bssid
-          }
-        />
-        <ListItemIcon>
-          <Badge badgeContent={network.rssi + 'dBm'}>
-            <WifiIcon sx={{ color: networkQualityHighlight(network, theme) }} />
-          </Badge>
-        </ListItemIcon>
-      </ListItem>
-    ),
-    [wifiConnectionContext, theme]
+  const renderNetwork = (network: WiFiNetwork) => (
+    <ListItem
+      key={network.bssid}
+      onClick={() => wifiConnectionContext.selectNetwork(network)}
+    >
+      <ListItemAvatar>
+        <Avatar>{isNetworkOpen(network) ? <LockOpenIcon /> : <LockIcon />}</Avatar>
+      </ListItemAvatar>
+      <ListItemText
+        primary={network.ssid}
+        secondary={
+          'Security: ' +
+          networkSecurityMode(network) +
+          ', Ch: ' +
+          network.channel +
+          ', bssid: ' +
+          network.bssid
+        }
+      />
+      <ListItemIcon>
+        <Badge badgeContent={network.rssi + 'dBm'}>
+          <WifiIcon sx={{ color: networkQualityHighlight(network, theme) }} />
+        </Badge>
+      </ListItemIcon>
+    </ListItem>
   );
 
   if (networkList.networks.length === 0) {

interface/src/app/settings/security/ManageUsers.tsx

@@ -1,4 +1,4 @@
-import { memo, useCallback, useContext, useMemo, useState } from 'react';
+import { memo, useCallback, useContext, useState } from 'react';
 import { useBlocker } from 'react-router';
 
 import CancelIcon from '@mui/icons-material/Cancel';
@@ -55,16 +55,14 @@ const ManageUsers = () => {
   const blocker = useBlocker(changed !== 0);
   const { LL } = useI18nContext();
 
-  const table_theme = useMemo(
-    () =>
-      useTheme({
-        Table: `
+  const table_theme = useTheme({
+    Table: `
       --data-table-library_grid-template-columns: repeat(1, minmax(0, 1fr)) minmax(120px, max-content) 120px;
     `,
-        BaseRow: `
+    BaseRow: `
       font-size: 14px;
     `,
-        HeaderRow: `
+    HeaderRow: `
       text-transform: uppercase;
       background-color: black;
       color: #90CAF9;
@@ -74,7 +72,7 @@ const ManageUsers = () => {
         border-bottom: 1px solid #565656;
       }
     `,
-        Row: `
+    Row: `
       .td {
         padding: 8px;
         border-top: 1px solid #565656;
@@ -87,7 +85,7 @@ const ManageUsers = () => {
         background-color: #1e1e1e;
       }
     `,
-        BaseCell: `
+    BaseCell: `
       &:nth-of-type(2) {
         text-align: center;
       }
@@ -95,44 +93,36 @@ const ManageUsers = () => {
         text-align: right;
       }
     `
-      }),
-    []
-  );
+  });
 
-  const noAdminConfigured = useCallback(
-    () => !data?.users.find((u) => u.admin),
-    [data]
-  );
+  const noAdminConfigured = () => !data?.users.find((u) => u.admin);
 
-  const removeUser = useCallback(
-    (toRemove: UserType) => {
-      if (!data) return;
-      const users = data.users.filter((u) => u.username !== toRemove.username);
-      updateDataValue({ ...data, users });
-      setChanged(changed + 1);
-    },
-    [data, updateDataValue, changed]
-  );
+  const removeUser = (toRemove: UserType) => {
+    if (!data) return;
+    const users = data.users.filter((u) => u.username !== toRemove.username);
+    updateDataValue({ ...data, users });
+    setChanged(changed + 1);
+  };
 
-  const createUser = useCallback(() => {
+  const createUser = () => {
     setCreating(true);
     setUser({
       username: '',
       password: '',
       admin: true
     });
-  }, []);
+  };
 
-  const editUser = useCallback((toEdit: UserType) => {
+  const editUser = (toEdit: UserType) => {
     setCreating(false);
     setUser({ ...toEdit });
-  }, []);
+  };
 
-  const cancelEditingUser = useCallback(() => {
+  const cancelEditingUser = () => {
     setUser(undefined);
-  }, []);
+  };
 
-  const doneEditingUser = useCallback(() => {
+  const doneEditingUser = () => {
     if (user && data) {
       const users = [
         ...data.users.filter(
@@ -144,26 +134,26 @@ const ManageUsers = () => {
       setUser(undefined);
       setChanged(changed + 1);
     }
-  }, [user, data, updateDataValue, changed]);
+  };
 
   const closeGenerateToken = useCallback(() => {
     setGeneratingToken(undefined);
   }, []);
 
-  const generateTokenForUser = useCallback((username: string) => {
+  const generateTokenForUser = (username: string) => {
     setGeneratingToken(username);
-  }, []);
+  };
 
-  const onSubmit = useCallback(async () => {
+  const onSubmit = async () => {
     await saveData();
     await authenticatedContext.refresh();
     setChanged(0);
-  }, [saveData, authenticatedContext]);
+  };
 
-  const onCancelSubmit = useCallback(async () => {
+  const onCancelSubmit = async () => {
     await loadData();
     setChanged(0);
-  }, [loadData]);
+  };
 
   const content = () => {
     if (!data) {
@@ -177,15 +167,10 @@ const ManageUsers = () => {
       admin: boolean;
     }
 
-    // add id to the type, needed for the table
-    const user_table = useMemo(
-      () =>
-        data.users.map((u) => ({
-          ...u,
-          id: u.username
-        })) as UserType2[],
-      [data.users]
-    );
+    const user_table = data.users.map((u) => ({
+      ...u,
+      id: u.username
+    })) as UserType2[];
 
     return (
       <>

interface/src/app/settings/security/Security.tsx

@@ -1,4 +1,4 @@
-import { memo, useMemo } from 'react';
+import { memo } from 'react';
 import { Navigate, Route, Routes, matchRoutes, useLocation } from 'react-router';
 
 import { Tab } from '@mui/material';
@@ -15,19 +15,15 @@ const Security = () => {
 
   const location = useLocation();
 
-  const matchedRoutes = useMemo(
-    () =>
-      matchRoutes(
-        [
-          {
-            path: '/settings/security/settings',
-            element: <ManageUsers />
-          },
-          { path: '/settings/security/users', element: <SecuritySettings /> }
-        ],
-        location
-      ),
-    [location]
+  const matchedRoutes = matchRoutes(
+    [
+      {
+        path: '/settings/security/settings',
+        element: <ManageUsers />
+      },
+      { path: '/settings/security/users', element: <SecuritySettings /> }
+    ],
+    location
   );
   const routerTab = matchedRoutes?.[0]?.route.path || false;
 

interface/src/app/settings/security/SecuritySettings.tsx

@@ -19,7 +19,7 @@ import { AuthenticatedContext } from 'contexts/authentication';
 import { useI18nContext } from 'i18n/i18n-react';
 import type { SecuritySettingsType } from 'types';
 import { updateValueDirty, useRest } from 'utils';
-import { SECURITY_SETTINGS_VALIDATOR, validate } from 'validators';
+import { SECURITY_SETTINGS_VALIDATOR, ValidationError, validate } from 'validators';
 
 const SecuritySettings = () => {
   const { LL } = useI18nContext();
@@ -58,7 +58,7 @@ const SecuritySettings = () => {
       await saveData();
       await authenticatedContext.refresh();
     } catch (error) {
-      setFieldErrors(error as ValidateFieldsError);
+      setFieldErrors((error as ValidationError).fieldErrors);
     }
   }, [data, saveData, authenticatedContext]);
 
@@ -79,7 +79,7 @@ const SecuritySettings = () => {
           onChange={updateFormValue}
           margin="normal"
         />
-        <MessageBox level="info" message={LL.SU_TEXT()} mt={1} />
+        <MessageBox level="info" message={LL.SU_TEXT()} sx={{ mt: 1 }} />
         {dirtyFlags && dirtyFlags.length !== 0 && (
           <ButtonRow>
             <Button

interface/src/app/settings/security/User.tsx

@@ -1,4 +1,4 @@
-import { memo, useCallback, useEffect, useState } from 'react';
+import { memo, useEffect, useState } from 'react';
 import type { FC } from 'react';
 
 import CancelIcon from '@mui/icons-material/Cancel';
@@ -24,7 +24,7 @@ import {
 import { useI18nContext } from 'i18n/i18n-react';
 import type { UserType } from 'types';
 import { updateValue } from 'utils';
-import { validate } from 'validators';
+import { ValidationError, validate } from 'validators';
 
 interface UserFormProps {
   creating: boolean;
@@ -62,17 +62,17 @@ const User: FC<UserFormProps> = ({
     }
   }, [open]);
 
-  const validateAndDone = useCallback(async () => {
+  const validateAndDone = async () => {
     if (user) {
       try {
         setFieldErrors(undefined);
         await validate(validator, user);
         onDoneEditing();
       } catch (error) {
-        setFieldErrors(error as ValidateFieldsError);
+        setFieldErrors((error as ValidationError).fieldErrors);
       }
     }
-  }, [user, validator, onDoneEditing]);
+  };
 
   return (
     <Dialog

interface/src/app/status/Activity.tsx

@@ -1,5 +1,3 @@
-import { useCallback, useMemo } from 'react';
-
 import {
   Body,
   Cell,
@@ -36,16 +34,14 @@ const SystemActivity = () => {
 
   useLayoutTitle(LL.DATA_TRAFFIC());
 
-  const stats_theme = tableTheme(
-    useMemo(
-      () => ({
-        Table: `
+  const stats_theme = tableTheme({
+    Table: `
       --data-table-library_grid-template-columns: repeat(1, minmax(0, 1fr)) 90px 90px 80px;
     `,
-        BaseRow: `
+    BaseRow: `
       font-size: 14px;
     `,
-        HeaderRow: `
+    HeaderRow: `
       text-transform: uppercase;
       background-color: black;
       color: #90CAF9;
@@ -55,7 +51,7 @@ const SystemActivity = () => {
         border-bottom: 1px solid #565656;
       }
     `,
-        Row: `
+    Row: `
       .td {
         padding: 8px;
         border-top: 1px solid #565656;
@@ -69,26 +65,20 @@ const SystemActivity = () => {
         background-color: #1e1e1e;
       }
     `,
-        BaseCell: `
+    BaseCell: `
       &:not(:first-of-type) {
         text-align: center;
       }
     `
-      }),
-      []
-    )
-  );
+  });
 
-  const showName = useCallback(
-    (id: number) => {
-      const name: keyof Translation['STATUS_NAMES'] =
-        id.toString() as keyof Translation['STATUS_NAMES'];
-      return LL.STATUS_NAMES[name]();
-    },
-    [LL]
-  );
+  const showName = (id: number) => {
+    const name: keyof Translation['STATUS_NAMES'] =
+      id.toString() as keyof Translation['STATUS_NAMES'];
+    return LL.STATUS_NAMES[name]();
+  };
 
-  const showQuality = useCallback((stat: Stat) => {
+  const showQuality = (stat: Stat) => {
     if (stat.q === 0 || stat.s + stat.f === 0) {
       return;
     }
@@ -100,14 +90,18 @@ const SystemActivity = () => {
     } else {
       return <div style={{ color: QUALITY_COLORS.POOR }}>{stat.q}%</div>;
     }
-  }, []);
-
-  const content = useMemo(() => {
-    if (!data) {
-      return <FormLoader onRetry={loadData} errorMessage={error?.message || ''} />;
-    }
+  };
 
+  if (!data) {
     return (
+      <SectionContent>
+        <FormLoader onRetry={loadData} errorMessage={error?.message || ''} />
+      </SectionContent>
+    );
+  }
+
+  return (
+    <SectionContent>
       <Table
         data={{ nodes: data.stats }}
         theme={stats_theme}
@@ -136,10 +130,8 @@ const SystemActivity = () => {
           </>
         )}
       </Table>
-    );
-  }, [data, loadData, error?.message, stats_theme, LL, showName, showQuality]);
-
-  return <SectionContent>{content}</SectionContent>;
+    </SectionContent>
+  );
 };
 
 export default SystemActivity;

interface/src/app/status/MqttStatus.tsx

@@ -1,4 +1,4 @@
-import { type FC, memo, useMemo } from 'react';
+import { type FC, memo } from 'react';
 
 import AutoAwesomeMotionIcon from '@mui/icons-material/AutoAwesomeMotion';
 import DeviceHubIcon from '@mui/icons-material/DeviceHub';
@@ -127,16 +127,15 @@ const MqttStatus = () => {
     void loadData();
   });
 
-  // Memoize error message separately to avoid re-renders on error object changes
   const errorMessage = error?.message || '';
 
-  const mqttStatusText = useMemo(() => {
-    if (!data) return '';
-    if (!data.enabled) return LL.NOT_ENABLED();
-    return data.connected
-      ? `${LL.CONNECTED(0)} (${data.connect_count})`
-      : `${LL.DISCONNECTED()} (${data.connect_count})`;
-  }, [data, LL]);
+  const mqttStatusText = !data
+    ? ''
+    : !data.enabled
+      ? LL.NOT_ENABLED()
+      : data.connected
+        ? `${LL.CONNECTED(0)} (${data.connect_count})`
+        : `${LL.DISCONNECTED()} (${data.connect_count})`;
 
   if (!data) {
     return (

interface/src/app/status/NTPStatus.tsx

@@ -1,5 +1,3 @@
-import { useMemo } from 'react';
-
 import AccessTimeIcon from '@mui/icons-material/AccessTime';
 import DnsIcon from '@mui/icons-material/Dns';
 import SwapVerticalCircleIcon from '@mui/icons-material/SwapVerticalCircle';
@@ -67,12 +65,16 @@ const NTPStatus = () => {
     }
   };
 
-  const content = useMemo(() => {
-    if (!data) {
-      return <FormLoader onRetry={loadData} errorMessage={error?.message || ''} />;
-    }
-
+  if (!data) {
     return (
+      <SectionContent>
+        <FormLoader onRetry={loadData} errorMessage={error?.message || ''} />
+      </SectionContent>
+    );
+  }
+
+  return (
+    <SectionContent>
       <List>
         <ListItem>
           <ListItemAvatar>
@@ -121,10 +123,8 @@ const NTPStatus = () => {
         </ListItem>
         <Divider variant="inset" component="li" />
       </List>
-    );
-  }, [data, error, loadData, LL, theme]);
-
-  return <SectionContent>{content}</SectionContent>;
+    </SectionContent>
+  );
 };
 
 export default NTPStatus;

interface/src/app/status/NetworkStatus.tsx

@@ -1,5 +1,3 @@
-import { useMemo } from 'react';
-
 import DeviceHubIcon from '@mui/icons-material/DeviceHub';
 import DnsIcon from '@mui/icons-material/Dns';
 import GiteIcon from '@mui/icons-material/Gite';
@@ -124,16 +122,20 @@ const NetworkStatus = () => {
 
   const theme = useTheme();
 
-  const content = useMemo(() => {
-    if (!data) {
-      return <FormLoader onRetry={loadData} errorMessage={error?.message || ''} />;
-    }
-
-    const statusText = getNetworkStatusText(data.status, data.reconnect_count, LL);
-    const statusColor = networkStatusHighlight(data, theme);
-    const qualityColor = networkQualityHighlight(data, theme);
-
+  if (!data) {
     return (
+      <SectionContent>
+        <FormLoader onRetry={loadData} errorMessage={error?.message || ''} />
+      </SectionContent>
+    );
+  }
+
+  const statusText = getNetworkStatusText(data.status, data.reconnect_count, LL);
+  const statusColor = networkStatusHighlight(data, theme);
+  const qualityColor = networkQualityHighlight(data, theme);
+
+  return (
+    <SectionContent>
       <List>
         <ListItem>
           <ListItemAvatar>
@@ -227,10 +229,8 @@ const NetworkStatus = () => {
           </>
         )}
       </List>
-    );
-  }, [data, error, loadData, LL, theme]);
-
-  return <SectionContent>{content}</SectionContent>;
+    </SectionContent>
+  );
 };
 
 export default NetworkStatus;

interface/src/app/status/Status.tsx

@@ -1,25 +1,16 @@
-import { useCallback, useContext, useMemo, useState } from 'react';
-import { toast } from 'react-toastify';
+import { useContext } from 'react';
 
 import AccessTimeIcon from '@mui/icons-material/AccessTime';
-import BuildIcon from '@mui/icons-material/Build';
-import CancelIcon from '@mui/icons-material/Cancel';
 import DeviceHubIcon from '@mui/icons-material/DeviceHub';
 import DirectionsBusIcon from '@mui/icons-material/DirectionsBus';
 import LogoDevIcon from '@mui/icons-material/LogoDev';
 import MemoryIcon from '@mui/icons-material/Memory';
 import MonitorHeartIcon from '@mui/icons-material/MonitorHeart';
-import PowerSettingsNewIcon from '@mui/icons-material/PowerSettingsNew';
 import RouterIcon from '@mui/icons-material/Router';
 import SettingsInputAntennaIcon from '@mui/icons-material/SettingsInputAntenna';
 import WifiIcon from '@mui/icons-material/Wifi';
 import {
   Avatar,
-  Button,
-  Dialog,
-  DialogActions,
-  DialogContent,
-  DialogTitle,
   List,
   ListItem,
   ListItemAvatar,
@@ -27,12 +18,10 @@ import {
   useTheme
 } from '@mui/material';
 
-import { API } from 'api/app';
 import { readSystemStatus } from 'api/system';
 
-import { dialogStyle } from 'CustomTheme';
 import { useRequest } from 'alova/client';
-import { type APIcall, busConnectionStatus } from 'app/main/types';
+import { busConnectionStatus } from 'app/main/types';
 import { FormLoader, SectionContent, useLayoutTitle } from 'components';
 import ListMenuItem from 'components/layout/ListMenuItem';
 import { AuthenticatedContext } from 'contexts/authentication';
@@ -41,9 +30,6 @@ import { NTPSyncStatus, NetworkConnectionStatus, SystemStatusCodes } from 'types
 import { useInterval } from 'utils';
 import { formatDateTime } from 'utils/time';
 
-import SystemMonitor from './SystemMonitor';
-
-// Pure functions moved outside component to avoid recreation on each render
 const formatNumber = (num: number) => new Intl.NumberFormat().format(num);
 
 const formatDurationSec = (
@@ -72,24 +58,7 @@ const SystemStatus = () => {
 
   const { me } = useContext(AuthenticatedContext);
 
-  const [confirmRestart, setConfirmRestart] = useState<boolean>(false);
-  const [restarting, setRestarting] = useState<boolean>();
-
-  const { send: sendAPI } = useRequest((data: APIcall) => API(data), {
-    immediate: false
-  });
-
-  const {
-    data,
-    send: loadData,
-    error
-  } = useRequest(readSystemStatus, {
-    async middleware(_, next) {
-      if (!restarting) {
-        await next();
-      }
-    }
-  });
+  const { data, send: loadData, error } = useRequest(readSystemStatus);
 
   useInterval(() => {
     void loadData();
@@ -97,10 +66,8 @@ const SystemStatus = () => {
 
   const theme = useTheme();
 
-  // Memoize derived status values to avoid recalculation on every render
-  const busStatus = useMemo(() => {
+  const busStatus = (() => {
     if (!data) return 'EMS state unknown';
-
     switch (data.bus_status) {
       case busConnectionStatus.BUS_STATUS_CONNECTED:
         return `EMS ${LL.CONNECTED(0)} (${formatDurationSec(data.bus_uptime, LL)})`;
@@ -111,12 +78,10 @@ const SystemStatus = () => {
       default:
         return 'EMS state unknown';
     }
-  }, [data?.bus_status, data?.bus_uptime, LL]);
+  })();
 
-  // Memoize derived status values to avoid recalculation on every render
-  const systemStatus = useMemo(() => {
+  const systemStatus = (() => {
     if (!data) return '??';
-
     switch (data.status) {
       case SystemStatusCodes.SYSTEM_STATUS_PENDING_UPLOAD:
       case SystemStatusCodes.SYSTEM_STATUS_UPLOADING:
@@ -129,14 +94,12 @@ const SystemStatus = () => {
       case SystemStatusCodes.SYSTEM_STATUS_INVALID_GPIO:
         return LL.GPIO_OF(LL.FAILED(0));
       default:
-        // SystemStatusCodes.SYSTEM_STATUS_NORMAL
         return 'OK';
     }
-  }, [data?.status, LL]);
+  })();
 
-  const busStatusHighlight = useMemo(() => {
+  const busStatusHighlight = (() => {
     if (!data) return theme.palette.warning.main;
-
     switch (data.bus_status) {
       case busConnectionStatus.BUS_STATUS_TX_ERRORS:
         return theme.palette.warning.main;
@@ -147,11 +110,10 @@ const SystemStatus = () => {
       default:
         return theme.palette.warning.main;
     }
-  }, [data?.bus_status, theme.palette]);
+  })();
 
-  const ntpStatus = useMemo(() => {
+  const ntpStatus = (() => {
     if (!data) return LL.UNKNOWN();
-
     switch (data.ntp_status) {
       case NTPSyncStatus.NTP_DISABLED:
         return LL.NOT_ENABLED();
@@ -164,11 +126,10 @@ const SystemStatus = () => {
       default:
         return LL.UNKNOWN();
     }
-  }, [data?.ntp_status, data?.ntp_time, LL]);
+  })();
 
-  const ntpStatusHighlight = useMemo(() => {
+  const ntpStatusHighlight = (() => {
     if (!data) return theme.palette.error.main;
-
     switch (data.ntp_status) {
       case NTPSyncStatus.NTP_DISABLED:
         return theme.palette.info.main;
@@ -179,11 +140,10 @@ const SystemStatus = () => {
       default:
         return theme.palette.error.main;
     }
-  }, [data?.ntp_status, theme.palette]);
+  })();
 
-  const networkStatusHighlight = useMemo(() => {
+  const networkStatusHighlight = (() => {
     if (!data) return theme.palette.warning.main;
-
     switch (data.network_status) {
       case NetworkConnectionStatus.WIFI_STATUS_IDLE:
       case NetworkConnectionStatus.WIFI_STATUS_DISCONNECTED:
@@ -198,11 +158,10 @@ const SystemStatus = () => {
       default:
         return theme.palette.warning.main;
     }
-  }, [data?.network_status, theme.palette]);
+  })();
 
-  const networkStatus = useMemo(() => {
+  const networkStatus = (() => {
     if (!data) return LL.UNKNOWN();
-
     switch (data.network_status) {
       case NetworkConnectionStatus.WIFI_STATUS_NO_SHIELD:
         return LL.INACTIVE(1);
@@ -223,227 +182,103 @@ const SystemStatus = () => {
       default:
         return LL.UNKNOWN();
     }
-  }, [data?.network_status, data?.wifi_rssi, LL]);
+  })();
 
-  const activeHighlight = useCallback(
-    (value: boolean) =>
-      value ? theme.palette.success.main : theme.palette.info.main,
-    [theme.palette]
-  );
-
-  const doRestart = useCallback(async () => {
-    setConfirmRestart(false);
-    setRestarting(true);
-    await sendAPI({ device: 'system', cmd: 'restart', id: 0 }).catch(
-      (error: Error) => {
-        toast.error(error.message);
-      }
-    );
-  }, [sendAPI]);
-
-  const handleCloseRestartDialog = useCallback(() => {
-    setConfirmRestart(false);
-  }, []);
-
-  const renderRestartDialog = useMemo(
-    () => (
-      <Dialog
-        sx={dialogStyle}
-        open={confirmRestart}
-        onClose={handleCloseRestartDialog}
-      >
-        <DialogTitle>{LL.RESTART()}</DialogTitle>
-        <DialogContent dividers>{LL.RESTART_CONFIRM()}</DialogContent>
-        <DialogActions>
-          <Button
-            startIcon={<CancelIcon />}
-            variant="outlined"
-            onClick={handleCloseRestartDialog}
-            color="secondary"
-          >
-            {LL.CANCEL()}
-          </Button>
-          <Button
-            startIcon={<PowerSettingsNewIcon />}
-            variant="outlined"
-            onClick={doRestart}
-            color="error"
-          >
-            {LL.RESTART()}
-          </Button>
-        </DialogActions>
-      </Dialog>
-    ),
-    [confirmRestart, handleCloseRestartDialog, doRestart, LL]
-  );
-
-  // Memoize formatted values
-  const firmwareVersion = useMemo(
-    () => `v${data?.emsesp_version || ''}`,
-    [data?.emsesp_version]
-  );
-
-  const uptimeText = useMemo(
-    () => (data ? formatDurationSec(data.uptime, LL) : ''),
-    [data?.uptime, LL]
-  );
-
-  const freeMemoryText = useMemo(
-    () => (data ? `${formatNumber(data.free_heap)} KB ${LL.FREE_MEMORY()}` : ''),
-    [data?.free_heap, LL]
-  );
-
-  const networkIcon = useMemo(
-    () =>
-      data?.network_status === NetworkConnectionStatus.WIFI_STATUS_CONNECTED
-        ? WifiIcon
-        : RouterIcon,
-    [data?.network_status]
-  );
-
-  const mqttStatusText = useMemo(
-    () => (data?.mqtt_status ? LL.CONNECTED(0) : LL.INACTIVE(0)),
-    [data?.mqtt_status, LL]
-  );
-
-  const apStatusText = useMemo(
-    () => (data?.ap_status ? LL.ACTIVE() : LL.INACTIVE(0)),
-    [data?.ap_status, LL]
-  );
-
-  const handleRestartClick = useCallback(() => {
-    setConfirmRestart(true);
-  }, []);
-
-  const content = useMemo(() => {
-    if (!data || !LL) {
-      return <FormLoader onRetry={loadData} errorMessage={error?.message || ''} />;
-    }
+  const activeHighlight = (value: boolean) =>
+    value ? theme.palette.success.main : theme.palette.info.main;
 
+  if (!data || !LL) {
     return (
-      <>
-        <List>
-          <ListMenuItem
-            icon={BuildIcon}
-            bgcolor="#72caf9"
-            label="EMS-ESP Firmware"
-            text={firmwareVersion}
-            to="version"
-          />
-
-          <ListItem>
-            <ListItemAvatar>
-              <Avatar sx={{ bgcolor: '#c5572c', color: 'white' }}>
-                <MonitorHeartIcon />
-              </Avatar>
-            </ListItemAvatar>
-            <ListItemText
-              primary={LL.STATUS_OF(LL.SYSTEM(0))}
-              secondary={`${systemStatus} (${LL.UPTIME()}: ${uptimeText})`}
-            />
-            {me.admin && (
-              <Button
-                startIcon={<PowerSettingsNewIcon />}
-                variant="outlined"
-                color="error"
-                onClick={handleRestartClick}
-              >
-                {LL.RESTART()}
-              </Button>
-            )}
-          </ListItem>
-
-          <ListMenuItem
-            disabled={!me.admin}
-            icon={MemoryIcon}
-            bgcolor="#68374d"
-            label={LL.HARDWARE()}
-            text={freeMemoryText}
-            to="/status/hardwarestatus"
-          />
-
-          <ListMenuItem
-            disabled={!me.admin}
-            icon={DirectionsBusIcon}
-            bgcolor={busStatusHighlight}
-            label={LL.DATA_TRAFFIC()}
-            text={busStatus}
-            to="/status/activity"
-          />
-
-          <ListMenuItem
-            disabled={!me.admin}
-            icon={networkIcon}
-            bgcolor={networkStatusHighlight}
-            label={LL.NETWORK(1)}
-            text={networkStatus}
-            to="/status/network"
-          />
-
-          <ListMenuItem
-            disabled={!me.admin}
-            icon={DeviceHubIcon}
-            bgcolor={activeHighlight(data.mqtt_status)}
-            label="MQTT"
-            text={mqttStatusText}
-            to="/status/mqtt"
-          />
-
-          <ListMenuItem
-            disabled={!me.admin}
-            icon={AccessTimeIcon}
-            bgcolor={ntpStatusHighlight}
-            label="NTP"
-            text={ntpStatus}
-            to="/status/ntp"
-          />
-
-          <ListMenuItem
-            disabled={!me.admin}
-            icon={SettingsInputAntennaIcon}
-            bgcolor={activeHighlight(data.ap_status)}
-            label={LL.ACCESS_POINT(0)}
-            text={apStatusText}
-            to="/status/ap"
-          />
-
-          <ListMenuItem
-            disabled={!me.admin}
-            icon={LogoDevIcon}
-            bgcolor="#40828f"
-            label={LL.LOG_OF(LL.SYSTEM(0))}
-            text={LL.VIEW_LOG()}
-            to="/status/log"
-          />
-        </List>
-
-        {renderRestartDialog}
-      </>
+      <SectionContent>
+        <FormLoader onRetry={loadData} errorMessage={error?.message || ''} />
+      </SectionContent>
     );
-  }, [
-    data,
-    LL,
-    firmwareVersion,
-    uptimeText,
-    freeMemoryText,
-    networkIcon,
-    mqttStatusText,
-    apStatusText,
-    busStatus,
-    busStatusHighlight,
-    networkStatusHighlight,
-    networkStatus,
-    ntpStatusHighlight,
-    ntpStatus,
-    activeHighlight,
-    me.admin,
-    handleRestartClick,
-    error,
-    loadData,
-    renderRestartDialog
-  ]);
+  }
 
-  return restarting ? <SystemMonitor /> : <SectionContent>{content}</SectionContent>;
+  return (
+    <SectionContent>
+      <List>
+        <ListItem>
+          <ListItemAvatar>
+            <Avatar sx={{ bgcolor: '#c5572c', color: 'white' }}>
+              <MonitorHeartIcon />
+            </Avatar>
+          </ListItemAvatar>
+          <ListItemText
+            primary={LL.STATUS_OF(LL.SYSTEM(0))}
+            secondary={`${systemStatus} (${LL.UPTIME()}: ${formatDurationSec(data.uptime, LL)})`}
+          />
+        </ListItem>
+
+        <ListMenuItem
+          disabled={!me.admin}
+          icon={MemoryIcon}
+          bgcolor="#68374d"
+          label={LL.HARDWARE()}
+          text={`${formatNumber(data.free_heap)} KB ${LL.FREE_MEMORY()}`}
+          to="/status/hardwarestatus"
+        />
+
+        <ListMenuItem
+          disabled={!me.admin}
+          icon={DirectionsBusIcon}
+          bgcolor={busStatusHighlight}
+          label={LL.DATA_TRAFFIC()}
+          text={busStatus}
+          to="/status/activity"
+        />
+
+        <ListMenuItem
+          disabled={!me.admin}
+          icon={
+            data.network_status === NetworkConnectionStatus.WIFI_STATUS_CONNECTED
+              ? WifiIcon
+              : RouterIcon
+          }
+          bgcolor={networkStatusHighlight}
+          label={LL.NETWORK(1)}
+          text={networkStatus}
+          to="/status/network"
+        />
+
+        <ListMenuItem
+          disabled={!me.admin}
+          icon={DeviceHubIcon}
+          bgcolor={activeHighlight(data.mqtt_status)}
+          label="MQTT"
+          text={data.mqtt_status ? LL.CONNECTED(0) : LL.INACTIVE(0)}
+          to="/status/mqtt"
+        />
+
+        <ListMenuItem
+          disabled={!me.admin}
+          icon={AccessTimeIcon}
+          bgcolor={ntpStatusHighlight}
+          label="NTP"
+          text={ntpStatus}
+          to="/status/ntp"
+        />
+
+        <ListMenuItem
+          disabled={!me.admin}
+          icon={SettingsInputAntennaIcon}
+          bgcolor={activeHighlight(data.ap_status)}
+          label={LL.ACCESS_POINT(0)}
+          text={data.ap_status ? LL.ACTIVE() : LL.INACTIVE(0)}
+          to="/status/ap"
+        />
+
+        <ListMenuItem
+          disabled={!me.admin}
+          icon={LogoDevIcon}
+          bgcolor="#40828f"
+          label={LL.LOG_OF(LL.SYSTEM(0))}
+          text={LL.VIEW_LOG()}
+          to="/status/log"
+        />
+      </List>
+    </SectionContent>
+  );
 };
 
 export default SystemStatus;

interface/src/app/status/SystemLog.tsx

@@ -1,11 +1,4 @@
-import {
-  memo,
-  useCallback,
-  useEffect,
-  useLayoutEffect,
-  useRef,
-  useState
-} from 'react';
+import { memo, useEffect, useLayoutEffect, useRef, useState } from 'react';
 import { toast } from 'react-toastify';
 
 import DownloadIcon from '@mui/icons-material/GetApp';
@@ -185,8 +178,7 @@ const SystemLog = () => {
     };
   }, [data]); // Recalculate when data changes (in case layout shifts)
 
-  // Memoize message handler to avoid recreating on every render
-  const handleLogMessage = useCallback((message: { data: string }) => {
+  const handleLogMessage = (message: { data: string }) => {
     const rawData = message.data;
     const logentry = JSON.parse(rawData) as LogEntry;
     setLogEntries((log) => {
@@ -200,7 +192,7 @@ const SystemLog = () => {
       const newLog = [...log, logentry];
       return newLog;
     });
-  }, []);
+  };
 
   useSSE(fetchLogES, {
     immediate: true,
@@ -211,7 +203,7 @@ const SystemLog = () => {
       toast.error('No connection to Log service');
     });
 
-  const onDownload = useCallback(() => {
+  const onDownload = () => {
     const result = logEntries
       .map((i) => `${i.t} ${levelLabel(i.l)} ${i.i}: [${i.n}] ${i.m}`)
       .join('\n');
@@ -225,11 +217,11 @@ const SystemLog = () => {
     document.body.appendChild(a);
     a.click();
     document.body.removeChild(a);
-  }, [logEntries]);
+  };
 
-  const saveSettings = useCallback(async () => {
+  const saveSettings = async () => {
     await saveData();
-  }, [saveData]);
+  };
 
   // handle scrolling - optimized to only scroll when needed
   const ref = useRef<HTMLDivElement>(null);
@@ -246,7 +238,7 @@ const SystemLog = () => {
     }
   }, [logEntries.length, autoscroll]);
 
-  const sendReadCommand = useCallback(() => {
+  const sendReadCommand = () => {
     if (readValue === '') {
       setReadOpen(!readOpen);
       return;
@@ -257,7 +249,7 @@ const SystemLog = () => {
       setReadOpen(false);
       setReadValue('');
     }
-  }, [readValue, readOpen, send]);
+  };
 
   const content = () => {
     if (!data) {

interface/src/app/status/SystemMonitor.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useMemo, useRef, useState } from 'react';
+import { useRef, useState } from 'react';
 
 import CancelIcon from '@mui/icons-material/Cancel';
 import { Box, Button, Typography } from '@mui/material';
@@ -57,39 +57,31 @@ const SystemMonitor = () => {
     void send();
   }, 1000); // check every 1 second
 
-  const { statusMessage, isUploading, progressValue } = useMemo(() => {
-    const status = data?.status;
+  const status = data?.status;
 
-    const message =
-      status && status >= SystemStatusCodes.SYSTEM_STATUS_UPLOADING
-        ? LL.WAIT_FIRMWARE()
-        : status === SystemStatusCodes.SYSTEM_STATUS_PENDING_RESTART
-          ? LL.APPLICATION_RESTARTING()
-          : status === SystemStatusCodes.SYSTEM_STATUS_NORMAL
-            ? LL.RESTARTING_PRE()
-            : status === SystemStatusCodes.SYSTEM_STATUS_ERROR_UPLOAD
-              ? 'Upload Failed'
-              : LL.RESTARTING_POST();
+  const statusMessage =
+    status && status >= SystemStatusCodes.SYSTEM_STATUS_UPLOADING
+      ? LL.WAIT_FIRMWARE()
+      : status === SystemStatusCodes.SYSTEM_STATUS_PENDING_RESTART
+        ? LL.APPLICATION_RESTARTING()
+        : status === SystemStatusCodes.SYSTEM_STATUS_NORMAL
+          ? LL.RESTARTING_PRE()
+          : status === SystemStatusCodes.SYSTEM_STATUS_ERROR_UPLOAD
+            ? 'Upload Failed'
+            : LL.RESTARTING_POST();
 
-    const uploading =
-      status !== undefined && status >= SystemStatusCodes.SYSTEM_STATUS_UPLOADING;
-    const progress =
-      uploading && status
-        ? Math.round(status - SystemStatusCodes.SYSTEM_STATUS_UPLOADING)
-        : 0;
+  const isUploading =
+    status !== undefined && status >= SystemStatusCodes.SYSTEM_STATUS_UPLOADING;
+  const progressValue =
+    isUploading && status
+      ? Math.round(status - SystemStatusCodes.SYSTEM_STATUS_UPLOADING)
+      : 0;
 
-    return {
-      statusMessage: message,
-      isUploading: uploading,
-      progressValue: progress
-    };
-  }, [data?.status, LL]);
-
-  const onCancel = useCallback(async () => {
+  const onCancel = async () => {
     setErrorMessage(undefined);
     await setSystemStatus(String(SystemStatusCodes.SYSTEM_STATUS_NORMAL));
     document.location.href = '/';
-  }, [setSystemStatus]);
+  };
 
   return (
     <Box

interface/src/app/status/Version.tsx

@@ -1,931 +0,0 @@
-import {
-  memo,
-  useCallback,
-  useContext,
-  useEffect,
-  useMemo,
-  useRef,
-  useState
-} from 'react';
-import { Link } from 'react-router';
-import { toast } from 'react-toastify';
-
-import CancelIcon from '@mui/icons-material/Cancel';
-import CloseIcon from '@mui/icons-material/Close';
-import CheckIcon from '@mui/icons-material/Done';
-import DownloadIcon from '@mui/icons-material/GetApp';
-import InfoOutlinedIcon from '@mui/icons-material/InfoOutlined';
-import WarningIcon from '@mui/icons-material/Warning';
-import {
-  Box,
-  Button,
-  Dialog,
-  DialogActions,
-  DialogContent,
-  DialogTitle,
-  Grid,
-  IconButton,
-  Table,
-  TableBody,
-  TableCell,
-  TableRow,
-  Typography
-} from '@mui/material';
-
-import * as SystemApi from 'api/system';
-import { API, callAction } from 'api/app';
-import { getDevVersion, getStableVersion } from 'api/system';
-
-import { dialogStyle } from 'CustomTheme';
-import { useRequest } from 'alova/client';
-import type { APIcall } from 'app/main/types';
-import SystemMonitor from 'app/status/SystemMonitor';
-import {
-  FormLoader,
-  SectionContent,
-  SingleUpload,
-  useLayoutTitle
-} from 'components';
-import { AuthenticatedContext } from 'contexts/authentication';
-import { useI18nContext } from 'i18n/i18n-react';
-import type { TranslationFunctions } from 'i18n/i18n-types';
-import { prettyDateTime } from 'utils/time';
-
-// Constants moved outside component to avoid recreation
-const STABLE_URL = 'https://github.com/emsesp/EMS-ESP32/releases/download/';
-const STABLE_RELNOTES_URL =
-  'https://github.com/emsesp/EMS-ESP32/blob/main/CHANGELOG.md';
-const DEV_URL = 'https://github.com/emsesp/EMS-ESP32/releases/download/latest/';
-const DEV_RELNOTES_URL =
-  'https://github.com/emsesp/EMS-ESP32/blob/dev/CHANGELOG_LATEST.md';
-
-// Types for better type safety
-interface PartitionData {
-  partition: string;
-  version: string;
-  install_date?: string;
-  size: number;
-}
-
-interface VersionData {
-  emsesp_version: string;
-  arduino_version: string;
-  esp_platform: string;
-  flash_chip_size: number;
-  psram: boolean;
-  build_flags?: string;
-  partition: string;
-  partitions: PartitionData[];
-  developer_mode: boolean;
-}
-
-interface UpgradeCheckData {
-  emsesp_version: string;
-  dev_upgradeable: boolean;
-  stable_upgradeable: boolean;
-}
-
-interface VersionInfo {
-  name: string;
-  published_at?: string;
-}
-
-// Memoized components for better performance
-const VersionInfoDialog = memo(
-  ({
-    showVersionInfo,
-    latestVersion,
-    latestDevVersion,
-    partitionVersion,
-    partition,
-    currentPartition,
-    size,
-    locale,
-    LL,
-    onClose
-  }: {
-    showVersionInfo: number;
-    latestVersion?: VersionInfo;
-    latestDevVersion?: VersionInfo;
-    partitionVersion?: VersionInfo | undefined;
-    partition: string;
-    currentPartition: string;
-    size: number;
-    locale: string;
-    LL: TranslationFunctions;
-    onClose: () => void;
-  }) => {
-    if (showVersionInfo === 0) return null;
-
-    const isStable = showVersionInfo === 1;
-    const isDev = showVersionInfo === 2;
-    const isPartition = showVersionInfo === 3;
-
-    const version = isStable
-      ? latestVersion
-      : isDev
-        ? latestDevVersion
-        : partitionVersion;
-    const relNotesUrl = isStable
-      ? STABLE_RELNOTES_URL
-      : isDev
-        ? DEV_RELNOTES_URL
-        : '';
-
-    return (
-      <Dialog sx={dialogStyle} open={showVersionInfo !== 0} onClose={onClose}>
-        <DialogTitle>{LL.FIRMWARE_VERSION_INFO()}</DialogTitle>
-        <DialogContent dividers>
-          <Table size="small" sx={{ borderCollapse: 'collapse', minWidth: 0 }}>
-            <TableBody>
-              <TableRow sx={{ height: 24, borderBottom: 'none' }}>
-                <TableCell
-                  component="th"
-                  scope="row"
-                  sx={{
-                    color: 'lightblue',
-                    borderBottom: 'none',
-                    pr: 1,
-                    py: 0.5,
-                    fontSize: 13
-                  }}
-                >
-                  {LL.VERSION()}
-                </TableCell>
-                <TableCell sx={{ borderBottom: 'none', py: 0.5, fontSize: 13 }}>
-                  {isPartition
-                    ? typeof version === 'string'
-                      ? version
-                      : version?.name
-                    : version?.name}
-                </TableCell>
-              </TableRow>
-              <TableRow sx={{ height: 24, borderBottom: 'none' }}>
-                <TableCell
-                  component="th"
-                  scope="row"
-                  sx={{
-                    color: 'lightblue',
-                    borderBottom: 'none',
-                    pr: 1,
-                    py: 0.5,
-                    fontSize: 13,
-                    width: 140
-                  }}
-                >
-                  {isPartition ? LL.TYPE(0) : LL.RELEASE_TYPE()}
-                </TableCell>
-                <TableCell sx={{ borderBottom: 'none', py: 0.5, fontSize: 13 }}>
-                  {partition === currentPartition && LL.ACTIVE() + ' '}
-                  {isStable
-                    ? LL.STABLE()
-                    : isDev
-                      ? LL.DEVELOPMENT()
-                      : 'Partition ' + LL.VERSION()}
-                </TableCell>
-              </TableRow>
-              {isPartition && (
-                <TableRow sx={{ height: 24, borderBottom: 'none' }}>
-                  <TableCell
-                    component="th"
-                    scope="row"
-                    sx={{
-                      color: 'lightblue',
-                      borderBottom: 'none',
-                      pr: 1,
-                      py: 0.5,
-                      fontSize: 13
-                    }}
-                  >
-                    Partition
-                  </TableCell>
-                  <TableCell sx={{ borderBottom: 'none', py: 0.5, fontSize: 13 }}>
-                    {partition}
-                  </TableCell>
-                </TableRow>
-              )}
-              {isPartition && (
-                <TableRow sx={{ height: 24, borderBottom: 'none' }}>
-                  <TableCell
-                    component="th"
-                    scope="row"
-                    sx={{
-                      color: 'lightblue',
-                      borderBottom: 'none',
-                      pr: 1,
-                      py: 0.5,
-                      fontSize: 13
-                    }}
-                  >
-                    Size
-                  </TableCell>
-                  <TableCell sx={{ borderBottom: 'none', py: 0.5, fontSize: 13 }}>
-                    {size} KB
-                  </TableCell>
-                </TableRow>
-              )}
-              {version?.published_at && (
-                <TableRow sx={{ height: 24, borderBottom: 'none' }}>
-                  <TableCell
-                    component="th"
-                    scope="row"
-                    sx={{
-                      color: 'lightblue',
-                      borderBottom: 'none',
-                      pr: 1,
-                      py: 0.5,
-                      fontSize: 13
-                    }}
-                  >
-                    {isPartition ? 'Install Date' : 'Build Date'}
-                  </TableCell>
-                  <TableCell sx={{ borderBottom: 'none', py: 0.5, fontSize: 13 }}>
-                    {prettyDateTime(locale, new Date(version.published_at))}
-                  </TableCell>
-                </TableRow>
-              )}
-            </TableBody>
-          </Table>
-        </DialogContent>
-        <DialogActions>
-          {!isPartition && (
-            <Button
-              variant="outlined"
-              component="a"
-              href={relNotesUrl}
-              target="_blank"
-              color="primary"
-            >
-              Changelog
-            </Button>
-          )}
-          <Button variant="outlined" onClick={onClose} color="secondary">
-            {LL.CLOSE()}
-          </Button>
-        </DialogActions>
-      </Dialog>
-    );
-  }
-);
-
-const InstallDialog = memo(
-  ({
-    openInstallDialog,
-    fetchDevVersion,
-    latestVersion,
-    latestDevVersion,
-    upgradeImportantMessageType,
-    downloadOnly,
-    platform,
-    LL,
-    onClose,
-    onInstall
-  }: {
-    openInstallDialog: boolean;
-    fetchDevVersion: boolean;
-    latestVersion?: VersionInfo;
-    latestDevVersion?: VersionInfo;
-    upgradeImportantMessageType: number;
-    downloadOnly: boolean;
-    platform: string;
-    LL: TranslationFunctions;
-    onClose: () => void;
-    onInstall: (url: string) => void;
-  }) => {
-    const binURL = useMemo(() => {
-      if (!latestVersion || !latestDevVersion) return '';
-
-      const version = fetchDevVersion ? latestDevVersion : latestVersion;
-      const filename = `EMS-ESP-${version.name.replaceAll('.', '_')}-${platform}.bin`;
-
-      return fetchDevVersion
-        ? `${DEV_URL}${filename}`
-        : `${STABLE_URL}v${version.name}/${filename}`;
-    }, [fetchDevVersion, latestVersion, latestDevVersion, platform]);
-
-    return (
-      <Dialog sx={dialogStyle} open={openInstallDialog} onClose={onClose}>
-        <DialogTitle>
-          {`${LL.INSTALL()} ${fetchDevVersion ? LL.DEVELOPMENT() : LL.STABLE()} Firmware`}
-        </DialogTitle>
-        <DialogContent dividers>
-          <Typography sx={{ mb: 2 }}>
-            {LL.INSTALL_VERSION(
-              downloadOnly ? LL.DOWNLOAD(1) : LL.INSTALL(),
-              fetchDevVersion ? latestDevVersion?.name : latestVersion?.name
-            )}
-          </Typography>
-          {upgradeImportantMessageType === 2 && LL.UPGRADE_IMPORTANT_MESSAGES_2()}
-          {upgradeImportantMessageType === 1 && (
-            <>
-              {LL.UPGRADE_IMPORTANT_MESSAGES_1()}
-              <Typography sx={{ mt: 2 }}>
-                <Link to="/settings/downloadUpload" style={{ color: 'lightblue' }}>
-                  {LL.DOWNLOAD_SYSTEM_BACKUP()}
-                </Link>
-              </Typography>
-            </>
-          )}
-          <Typography sx={{ mt: 2 }}>
-            <Link
-              to="https://docs.emsesp.org/FAQ#upgrading-the-firmware"
-              target="_blank"
-              rel="noreferrer"
-              style={{ color: 'lightblue' }}
-            >
-              {LL.ONLINE_HELP()}
-            </Link>
-          </Typography>
-        </DialogContent>
-        <DialogActions>
-          <Button
-            startIcon={<CancelIcon />}
-            variant="outlined"
-            onClick={onClose}
-            color="secondary"
-          >
-            {LL.CANCEL()}
-          </Button>
-          <Button
-            startIcon={<DownloadIcon />}
-            variant="outlined"
-            onClick={onClose}
-            color="primary"
-          >
-            <Link
-              to={binURL}
-              target="_blank"
-              rel="noreferrer"
-              style={{ color: 'lightblue', textDecoration: 'none' }}
-            >
-              {LL.DOWNLOAD(0)}
-            </Link>
-          </Button>
-          {!downloadOnly && (
-            <Button
-              startIcon={<WarningIcon color="warning" />}
-              variant="outlined"
-              onClick={() => onInstall(binURL)}
-              color="primary"
-            >
-              {LL.INSTALL()}
-            </Button>
-          )}
-        </DialogActions>
-      </Dialog>
-    );
-  }
-);
-
-const InstallPartitionDialog = memo(
-  ({
-    openInstallPartitionDialog,
-    version,
-    partition,
-    LL,
-    onClose,
-    onInstall
-  }: {
-    openInstallPartitionDialog: boolean;
-    version: string;
-    partition: string;
-    LL: TranslationFunctions;
-    onClose: () => void;
-    onInstall: (partition: string) => void;
-  }) => {
-    return (
-      <Dialog sx={dialogStyle} open={openInstallPartitionDialog} onClose={onClose}>
-        <DialogTitle>
-          {LL.INSTALL()} {LL.STORED_VERSIONS()}
-        </DialogTitle>
-        <DialogContent dividers>
-          <Typography sx={{ mb: 2 }}>
-            {LL.INSTALL_VERSION(LL.INSTALL(), version)}
-          </Typography>
-        </DialogContent>
-        <DialogActions>
-          <Button
-            startIcon={<CancelIcon />}
-            variant="outlined"
-            onClick={onClose}
-            color="secondary"
-          >
-            {LL.CANCEL()}
-          </Button>
-
-          <Button
-            startIcon={<WarningIcon color="warning" />}
-            variant="outlined"
-            onClick={() => onInstall(partition)}
-            color="primary"
-          >
-            {LL.INSTALL()}
-          </Button>
-        </DialogActions>
-      </Dialog>
-    );
-  }
-);
-
-// Helper function moved outside component
-const getPlatform = (data: VersionData): string => {
-  return `${data.esp_platform}-${data.flash_chip_size >= 16384 ? '16MB' : '4MB'}${data.psram ? '+' : ''}`;
-};
-
-const Version = () => {
-  const { LL, locale } = useI18nContext();
-  const { me } = useContext(AuthenticatedContext);
-
-  // State management
-  const [restarting, setRestarting] = useState<boolean>(false);
-  const [openInstallDialog, setOpenInstallDialog] = useState<boolean>(false);
-
-  const [partitionVersion, setPartitionVersion] = useState<VersionInfo | undefined>(
-    undefined
-  );
-  const [partition, setPartition] = useState<string>('');
-  const [openInstallPartitionDialog, setOpenInstallPartitionDialog] =
-    useState<boolean>(false);
-
-  const [usingDevVersion, setUsingDevVersion] = useState<boolean>(false);
-  const [fetchDevVersion, setFetchDevVersion] = useState<boolean>(false);
-  const [devUpgradeAvailable, setDevUpgradeAvailable] = useState<boolean>(false);
-  const [stableUpgradeAvailable, setStableUpgradeAvailable] =
-    useState<boolean>(false);
-  const [internetLive, setInternetLive] = useState<boolean>(false);
-  const [downloadOnly, setDownloadOnly] = useState<boolean>(false);
-  const [showVersionInfo, setShowVersionInfo] = useState<number>(0); // 1 = stable, 2 = dev, 3 = partition
-  const [firmwareSize, setFirmwareSize] = useState<number>(0);
-
-  const { send: sendCheckUpgrade } = useRequest(
-    (versions: string) => callAction({ action: 'checkUpgrade', param: versions }),
-    { immediate: false }
-  ).onSuccess((event) => {
-    const data = event.data as UpgradeCheckData;
-    setDevUpgradeAvailable(data.dev_upgradeable);
-    setStableUpgradeAvailable(data.stable_upgradeable);
-  });
-
-  const { send: sendSetPartition } = useRequest(
-    (partition: string) => callAction({ action: 'setPartition', param: partition }),
-    { immediate: false }
-  ).onError((error) => {
-    toast.error(String(error.error?.message || 'An error occurred'));
-  });
-
-  const {
-    data,
-    send: loadData,
-    error
-  } = useRequest(SystemApi.readSystemStatus).onSuccess((event) => {
-    const systemData = event.data as VersionData;
-    if (systemData.arduino_version.startsWith('Tasmota')) {
-      setDownloadOnly(true);
-    }
-    setUsingDevVersion(systemData.emsesp_version.includes('dev'));
-  });
-
-  const { send: sendUploadURL } = useRequest(
-    (url: string) => callAction({ action: 'uploadURL', param: url }),
-    { immediate: false }
-  );
-
-  const { data: latestVersion } = useRequest(getStableVersion);
-  const { data: latestDevVersion } = useRequest(getDevVersion);
-
-  const { send: sendAPI } = useRequest((data: APIcall) => API(data), {
-    immediate: false
-  });
-
-  const [upgradeImportantMessageType, setUpgradeImportantMessageType] =
-    useState<number>(0);
-
-  const { send: checkUpgradeImportantMessages } = useRequest(
-    (version: string) =>
-      callAction({ action: 'upgradeImportantMessages', param: version }),
-    {
-      immediate: false
-    }
-  )
-    .onSuccess((event) => {
-      const upgradeImportantMessageType_n = (
-        event.data as { upgradeImportantMessageType: number }
-      ).upgradeImportantMessageType;
-      setUpgradeImportantMessageType(upgradeImportantMessageType_n);
-    })
-    .onError((error) => {
-      toast.error(String(error.error?.message || 'An error occurred'));
-    });
-
-  // Memoized values
-  const platform = useMemo(() => (data ? getPlatform(data) : ''), [data]);
-
-  // Memoize filtered partitions to avoid recomputing on every render
-  const otherPartitions = useMemo(
-    () => data?.partitions.filter((p) => p.partition !== data.partition) ?? [],
-    [data]
-  );
-
-  const setPartitionVersionInfo = useCallback(
-    (partition: string) => {
-      setShowVersionInfo(3);
-
-      // search for the partition in the data.partitions array
-      const partitionData = data?.partitions.find((p) => p.partition === partition);
-      if (partitionData) {
-        setPartitionVersion({
-          name: partitionData.version,
-          published_at: partitionData.install_date ?? ''
-        });
-        setPartition(partitionData.partition);
-        setFirmwareSize(partitionData.size);
-      }
-    },
-    [data]
-  );
-
-  const doRestart = useCallback(async () => {
-    await sendAPI({ device: 'system', cmd: 'restart', id: 0 }).catch(
-      (error: Error) => {
-        toast.error(error.message);
-      }
-    );
-    setRestarting(true);
-  }, [sendAPI]);
-
-  const installFirmwareURL = useCallback(
-    async (url: string) => {
-      await sendUploadURL(url).catch((error: Error) => {
-        toast.error(error.message);
-      });
-      await doRestart();
-    },
-    [sendUploadURL, doRestart]
-  );
-
-  const installPartitionFirmware = useCallback(
-    async (partition: string) => {
-      await sendSetPartition(partition).catch((error: Error) => {
-        toast.error(error.message);
-      });
-      setRestarting(true);
-    },
-    [sendSetPartition]
-  );
-
-  const showPartitionDialog = useCallback(
-    (version: string, partition: string, install_date: string) => {
-      setOpenInstallPartitionDialog(true);
-      setPartitionVersion({ name: version, published_at: install_date });
-      setPartition(partition);
-    },
-    []
-  );
-
-  const showFirmwareDialog = useCallback(
-    (useDevVersion: boolean) => {
-      setFetchDevVersion(useDevVersion);
-      void checkUpgradeImportantMessages(
-        useDevVersion ? latestDevVersion?.name : latestVersion?.name
-      );
-      setOpenInstallDialog(true);
-    },
-    [latestDevVersion, latestVersion, fetchDevVersion]
-  );
-
-  const closeInstallDialog = useCallback(() => {
-    setOpenInstallDialog(false);
-  }, []);
-
-  const closeInstallPartitionDialog = useCallback(() => {
-    setOpenInstallPartitionDialog(false);
-  }, []);
-
-  const handleVersionInfoClose = useCallback(() => {
-    setShowVersionInfo(0);
-    setPartitionVersion(undefined);
-    setPartition('');
-  }, []);
-
-  // check upgrades - only once when both versions are available
-  const upgradeCheckedRef = useRef(false);
-  useEffect(() => {
-    if (latestVersion && latestDevVersion && !upgradeCheckedRef.current) {
-      upgradeCheckedRef.current = true;
-      const versions = `${latestDevVersion.name},${latestVersion.name}`;
-      sendCheckUpgrade(versions)
-        .catch((error: Error) => {
-          toast.error(`Failed to check for upgrades: ${error.message}`);
-        })
-        .finally(() => {
-          setInternetLive(true);
-        });
-    }
-  }, [latestVersion, latestDevVersion, sendCheckUpgrade]);
-
-  useLayoutTitle('EMS-ESP Firmware');
-
-  // Memoized button rendering logic
-  const showButtons = useCallback(
-    (showingDev: boolean) => {
-      const choice = showingDev
-        ? !usingDevVersion
-          ? LL.SWITCH_RELEASE_TYPE(LL.DEVELOPMENT())
-          : devUpgradeAvailable
-            ? LL.UPDATE_AVAILABLE()
-            : undefined
-        : usingDevVersion
-          ? LL.SWITCH_RELEASE_TYPE(LL.STABLE())
-          : stableUpgradeAvailable
-            ? LL.UPDATE_AVAILABLE()
-            : undefined;
-
-      if (!choice) {
-        return (
-          <>
-            <CheckIcon
-              color="success"
-              sx={{ verticalAlign: 'middle', ml: 0.5, mr: 0.5 }}
-            />
-            <span style={{ color: '#66bb6a', fontSize: '0.8em' }}>
-              {LL.LATEST_VERSION(usingDevVersion ? LL.DEVELOPMENT() : LL.STABLE())}
-            </span>
-            <Button
-              sx={{ ml: 1 }}
-              variant="outlined"
-              size="small"
-              onClick={() => showFirmwareDialog(showingDev)}
-            >
-              {LL.REINSTALL()}
-            </Button>
-          </>
-        );
-      }
-
-      if (!me.admin) return null;
-
-      return (
-        <Button
-          sx={{ ml: 1 }}
-          variant="outlined"
-          color={choice === LL.UPDATE_AVAILABLE() ? 'success' : 'warning'}
-          size="small"
-          onClick={() => showFirmwareDialog(showingDev)}
-        >
-          {choice}
-        </Button>
-      );
-    },
-    [
-      usingDevVersion,
-      devUpgradeAvailable,
-      stableUpgradeAvailable,
-      me.admin,
-      LL,
-      showFirmwareDialog
-    ]
-  );
-
-  const content = useMemo(() => {
-    if (!data) {
-      return <FormLoader onRetry={loadData} errorMessage={error?.message || ''} />;
-    }
-
-    return (
-      <>
-        <Box sx={{ p: 2, border: '1px solid #565656', borderRadius: 2 }}>
-          <Typography sx={{ mb: 1 }} variant="h6" color="primary">
-            {LL.THIS_VERSION()}
-          </Typography>
-
-          <Grid
-            container
-            direction="row"
-            sx={{
-              justifyContent: 'flex-start',
-              alignItems: 'baseline'
-            }}
-          >
-            <Grid size={{ xs: 4, md: 2 }}>
-              <Typography color="secondary">{LL.VERSION()}</Typography>
-            </Grid>
-            <Grid size={{ xs: 8, md: 10 }}>
-              <Typography>
-                {data.emsesp_version}
-                {data.build_flags && (
-                  <Typography variant="caption">
-                    &nbsp; &#40;{data.build_flags}&#41;
-                  </Typography>
-                )}
-                <IconButton
-                  onClick={() => setPartitionVersionInfo(data.partition)}
-                  aria-label={LL.FIRMWARE_VERSION_INFO()}
-                >
-                  <InfoOutlinedIcon color="primary" sx={{ fontSize: 18 }} />
-                </IconButton>
-              </Typography>
-            </Grid>
-
-            <Grid size={{ xs: 4, md: 2 }}>
-              <Typography color="secondary">{LL.PLATFORM()}</Typography>
-            </Grid>
-            <Grid size={{ xs: 8, md: 10 }}>
-              <Typography>
-                {platform}
-                <Typography variant="caption">
-                  &nbsp; &#40;
-                  {data.psram ? (
-                    <CheckIcon
-                      color="success"
-                      sx={{
-                        fontSize: '1.5em',
-                        verticalAlign: 'middle'
-                      }}
-                    />
-                  ) : (
-                    <CloseIcon
-                      color="error"
-                      sx={{
-                        fontSize: '1.5em',
-                        verticalAlign: 'middle'
-                      }}
-                    />
-                  )}
-                  PSRAM&#41;
-                </Typography>
-              </Typography>
-            </Grid>
-          </Grid>
-
-          {internetLive ? (
-            <>
-              <Typography sx={{ mt: 4, mb: 1 }} variant="h6" color="primary">
-                {LL.AVAILABLE_VERSION()}
-              </Typography>
-
-              <Grid
-                container
-                direction="row"
-                rowSpacing={1}
-                sx={{
-                  justifyContent: 'flex-start',
-                  alignItems: 'baseline'
-                }}
-              >
-                {otherPartitions.length > 0 && data.developer_mode && (
-                  <>
-                    <Grid size={{ xs: 4, md: 2 }}>
-                      <Typography color="secondary">
-                        {LL.STORED_VERSIONS()}
-                      </Typography>
-                    </Grid>
-                    <Grid size={{ xs: 8, md: 10 }}>
-                      {otherPartitions.map((partition) => (
-                        <Typography key={partition.partition} sx={{ mb: 1 }}>
-                          {partition.version}
-                          <IconButton
-                            onClick={() =>
-                              setPartitionVersionInfo(partition.partition)
-                            }
-                            aria-label={LL.FIRMWARE_VERSION_INFO()}
-                          >
-                            <InfoOutlinedIcon
-                              color="primary"
-                              sx={{ fontSize: 18 }}
-                            />
-                          </IconButton>
-                          <Button
-                            sx={{ ml: 0 }}
-                            variant="outlined"
-                            size="small"
-                            onClick={() =>
-                              showPartitionDialog(
-                                partition.version,
-                                partition.partition,
-                                partition.install_date ?? ''
-                              )
-                            }
-                          >
-                            {LL.INSTALL()}
-                          </Button>
-                        </Typography>
-                      ))}
-                    </Grid>
-                  </>
-                )}
-                <Grid size={{ xs: 4, md: 2 }}>
-                  <Typography color="secondary">{LL.STABLE()}</Typography>
-                </Grid>
-                <Grid size={{ xs: 8, md: 10 }}>
-                  <Typography>
-                    {latestVersion?.name}
-                    <IconButton
-                      onClick={() => setShowVersionInfo(1)}
-                      aria-label={LL.FIRMWARE_VERSION_INFO()}
-                    >
-                      <InfoOutlinedIcon color="primary" sx={{ fontSize: 18 }} />
-                    </IconButton>
-                    {showButtons(false)}
-                  </Typography>
-                </Grid>
-
-                <Grid size={{ xs: 4, md: 2 }}>
-                  <Typography color="secondary">{LL.DEVELOPMENT()}</Typography>
-                </Grid>
-                <Grid size={{ xs: 8, md: 10 }}>
-                  <Typography>
-                    {latestDevVersion?.name}
-                    <IconButton
-                      onClick={() => setShowVersionInfo(2)}
-                      aria-label={LL.FIRMWARE_VERSION_INFO()}
-                    >
-                      <InfoOutlinedIcon color="primary" sx={{ fontSize: 18 }} />
-                    </IconButton>
-                    {showButtons(true)}
-                  </Typography>
-                </Grid>
-              </Grid>
-            </>
-          ) : (
-            <Typography sx={{ mt: 2 }} color="warning">
-              <WarningIcon color="warning" sx={{ verticalAlign: 'middle', mr: 2 }} />
-              {LL.INTERNET_CONNECTION_REQUIRED()}
-            </Typography>
-          )}
-          {me.admin && (
-            <>
-              <VersionInfoDialog
-                showVersionInfo={showVersionInfo}
-                latestVersion={latestVersion}
-                latestDevVersion={latestDevVersion}
-                partitionVersion={partitionVersion}
-                locale={locale}
-                partition={partition}
-                currentPartition={data?.partition ?? ''}
-                size={firmwareSize}
-                LL={LL}
-                onClose={handleVersionInfoClose}
-              />
-              <InstallDialog
-                openInstallDialog={openInstallDialog}
-                fetchDevVersion={fetchDevVersion}
-                latestVersion={latestVersion}
-                latestDevVersion={latestDevVersion}
-                upgradeImportantMessageType={upgradeImportantMessageType}
-                downloadOnly={downloadOnly}
-                platform={platform}
-                LL={LL}
-                onClose={closeInstallDialog}
-                onInstall={installFirmwareURL}
-              />
-              <InstallPartitionDialog
-                openInstallPartitionDialog={openInstallPartitionDialog}
-                version={partitionVersion?.name || ''}
-                partition={partition}
-                LL={LL}
-                onClose={closeInstallPartitionDialog}
-                onInstall={installPartitionFirmware}
-              />
-              <Typography sx={{ pt: 2, pb: 2 }} variant="h6" color="primary">
-                {LL.UPLOAD()}
-              </Typography>
-              <SingleUpload doRestart={doRestart} />
-            </>
-          )}
-        </Box>
-      </>
-    );
-  }, [
-    data,
-    error,
-    loadData,
-    LL,
-    platform,
-    internetLive,
-    latestVersion,
-    latestDevVersion,
-    showVersionInfo,
-    locale,
-    openInstallDialog,
-    fetchDevVersion,
-    downloadOnly,
-    me.admin,
-    showButtons,
-    handleVersionInfoClose,
-    closeInstallDialog,
-    installFirmwareURL,
-    doRestart,
-    otherPartitions,
-    setPartitionVersionInfo,
-    showPartitionDialog,
-    partitionVersion,
-    partition,
-    firmwareSize,
-    closeInstallPartitionDialog,
-    installPartitionFirmware
-  ]);
-
-  return restarting ? <SystemMonitor /> : <SectionContent>{content}</SectionContent>;
-};
-
-export default memo(Version);

interface/src/components/MessageBox.tsx

@@ -1,4 +1,4 @@
-import { type FC, type PropsWithChildren, memo, useMemo } from 'react';
+import { type FC, type PropsWithChildren, memo } from 'react';
 
 import CheckCircleOutlineOutlinedIcon from '@mui/icons-material/CheckCircleOutlineOutlined';
 import ErrorIcon from '@mui/icons-material/Error';
@@ -38,18 +38,17 @@ const MessageBox: FC<PropsWithChildren<MessageBoxProps>> = ({
 }) => {
   const theme = useTheme();
 
-  const { Icon, backgroundColor } = useMemo(() => {
-    const Icon = LEVEL_ICONS[level];
-    const palettePath = LEVEL_PALETTE_PATHS[level];
-    const [key, shade] = palettePath.split('.') as [
-      keyof typeof theme.palette,
-      string
-    ];
-    const paletteKey = theme.palette[key] as unknown as Record<string, string>;
-    const backgroundColor = paletteKey[shade];
-
-    return { Icon, backgroundColor };
-  }, [level, theme]);
+  const Icon = LEVEL_ICONS[level];
+  const palettePath = LEVEL_PALETTE_PATHS[level];
+  const [paletteKeyName, shade] = palettePath.split('.') as [
+    keyof typeof theme.palette,
+    string
+  ];
+  const paletteKey = theme.palette[paletteKeyName] as unknown as Record<
+    string,
+    string
+  >;
+  const backgroundColor = paletteKey[shade];
 
   return (
     <Box

interface/src/components/inputs/LanguageSelector.tsx

@@ -1,4 +1,4 @@
-import { memo, useCallback, useContext, useMemo } from 'react';
+import { memo, useContext } from 'react';
 import type { ChangeEventHandler } from 'react';
 import type { CSSProperties } from 'react';
 
@@ -44,27 +44,14 @@ const LANGUAGE_OPTIONS: LanguageOption[] = [
 const LanguageSelector = () => {
   const { setLocale, locale, LL } = useContext(I18nContext);
 
-  const onLocaleSelected: ChangeEventHandler<HTMLInputElement> = useCallback(
-    async ({ target }) => {
-      const loc = target.value as Locales;
-      localStorage.setItem('lang', loc);
-      await loadLocaleAsync(loc);
-      setLocale(loc);
-    },
-    [setLocale]
-  );
-
-  // Memoize menu items to prevent recreation on every render
-  const menuItems = useMemo(
-    () =>
-      LANGUAGE_OPTIONS.map(({ key, flag, label }) => (
-        <MenuItem key={key} value={key}>
-          <img src={flag} style={flagStyle} alt={label} />
-          &nbsp;{label}
-        </MenuItem>
-      )),
-    []
-  );
+  const onLocaleSelected: ChangeEventHandler<HTMLInputElement> = async ({
+    target
+  }) => {
+    const loc = target.value as Locales;
+    localStorage.setItem('lang', loc);
+    await loadLocaleAsync(loc);
+    setLocale(loc);
+  };
 
   return (
     <TextField
@@ -76,7 +63,12 @@ const LanguageSelector = () => {
       size="small"
       select
     >
-      {menuItems}
+      {LANGUAGE_OPTIONS.map(({ key, flag, label }) => (
+        <MenuItem key={key} value={key}>
+          <img src={flag} style={flagStyle} alt={label} />
+          &nbsp;{label}
+        </MenuItem>
+      ))}
     </TextField>
   );
 };

interface/src/components/inputs/ValidatedPasswordField.tsx

@@ -1,4 +1,4 @@
-import { memo, useCallback, useState } from 'react';
+import { memo, useState } from 'react';
 import type { FC } from 'react';
 
 import VisibilityIcon from '@mui/icons-material/Visibility';
@@ -13,9 +13,9 @@ type ValidatedPasswordFieldProps = Omit<ValidatedTextFieldProps, 'type'>;
 const ValidatedPasswordField: FC<ValidatedPasswordFieldProps> = ({ ...props }) => {
   const [showPassword, setShowPassword] = useState<boolean>(false);
 
-  const togglePasswordVisibility = useCallback(() => {
+  const togglePasswordVisibility = () => {
     setShowPassword((prev) => !prev);
-  }, []);
+  };
 
   return (
     <ValidatedTextField

interface/src/components/layout/Layout.tsx

@@ -18,7 +18,6 @@ const LayoutComponent: FC<RequiredChildrenProps> = ({ children }) => {
   const [title, setTitle] = useState(PROJECT_NAME);
   const { pathname } = useLocation();
 
-  // Memoize drawer toggle handler to prevent unnecessary re-renders
   const handleDrawerToggle = useCallback(() => {
     setMobileOpen((prev) => !prev);
   }, []);
@@ -28,7 +27,6 @@ const LayoutComponent: FC<RequiredChildrenProps> = ({ children }) => {
     setMobileOpen(false);
   }, [pathname]);
 
-  // Memoize context value to prevent unnecessary re-renders
   const contextValue = useMemo(() => ({ title, setTitle }), [title]);
 
   return (

interface/src/components/layout/LayoutAppBar.tsx

@@ -1,4 +1,4 @@
-import { memo, useCallback, useMemo } from 'react';
+import { memo } from 'react';
 import { Link, useLocation, useNavigate } from 'react-router';
 
 import ArrowBackIcon from '@mui/icons-material/ArrowBack';
@@ -39,14 +39,11 @@ const LayoutAppBarComponent = ({ title, onToggleDrawer }: LayoutAppBarProps) =>
   const navigate = useNavigate();
   const location = useLocation();
 
-  const pathnames = useMemo(
-    () => location.pathname.split('/').filter((x) => x),
-    [location.pathname]
-  );
+  const pathnames = location.pathname.split('/').filter((x) => x);
 
-  const handleBackClick = useCallback(() => {
+  const handleBackClick = () => {
     void navigate('/' + pathnames[0]);
-  }, [navigate, pathnames]);
+  };
 
   return (
     <AppBar position="fixed" sx={appBarStyles}>

interface/src/components/layout/LayoutDrawer.tsx

@@ -1,4 +1,4 @@
-import { memo, useMemo } from 'react';
+import { memo } from 'react';
 
 import { Box, Divider, Drawer, Toolbar, Typography, styled } from '@mui/material';
 
@@ -24,22 +24,18 @@ interface LayoutDrawerProps {
 }
 
 const LayoutDrawerComponent = ({ mobileOpen, onClose }: LayoutDrawerProps) => {
-  // Memoize drawer content to prevent unnecessary re-renders
-  const drawer = useMemo(
-    () => (
-      <>
-        <Toolbar disableGutters>
-          <Box sx={{ display: 'flex', alignItems: 'center', p: 2 }}>
-            <LayoutDrawerLogo src="/app/icon.png" alt={PROJECT_NAME} />
-            <Typography variant="h6">{PROJECT_NAME}</Typography>
-          </Box>
-          <Divider absolute />
-        </Toolbar>
-        <Divider />
-        <LayoutMenu />
-      </>
-    ),
-    []
+  const drawer = (
+    <>
+      <Toolbar disableGutters>
+        <Box sx={{ display: 'flex', alignItems: 'center', p: 2 }}>
+          <LayoutDrawerLogo src="/app/icon.png" alt={PROJECT_NAME} />
+          <Typography variant="h6">{PROJECT_NAME}</Typography>
+        </Box>
+        <Divider absolute />
+      </Toolbar>
+      <Divider />
+      <LayoutMenu />
+    </>
   );
 
   return (

interface/src/components/layout/LayoutMenu.tsx

@@ -1,4 +1,4 @@
-import { memo, useCallback, useContext, useState } from 'react';
+import { memo, useContext, useState } from 'react';
 
 import AccountCircleIcon from '@mui/icons-material/AccountCircle';
 import AssessmentIcon from '@mui/icons-material/Assessment';
@@ -18,13 +18,15 @@ import { AuthenticatedContext } from 'contexts/authentication';
 import { useI18nContext } from 'i18n/i18n-react';
 
 const LayoutMenuComponent = () => {
-  const { me } = useContext(AuthenticatedContext);
+  const { me, versions } = useContext(AuthenticatedContext);
   const { LL } = useI18nContext();
   const [menuOpen, setMenuOpen] = useState(true);
 
-  const handleMenuToggle = useCallback(() => {
+  const upgradeAvailable = versions?.current?.upgradeable ?? false;
+
+  const handleMenuToggle = () => {
     setMenuOpen((prev) => !prev);
-  }, []);
+  };
 
   return (
     <>
@@ -105,6 +107,7 @@ const LayoutMenuComponent = () => {
           label={LL.SETTINGS(0)}
           disabled={!me.admin}
           to="/settings"
+          badge={upgradeAvailable}
         />
         <LayoutMenuItem icon={LiveHelpIcon} label={LL.HELP()} to={`/help`} />
         <Divider />

interface/src/components/layout/LayoutMenuItem.tsx

@@ -1,7 +1,7 @@
-import { memo, useMemo } from 'react';
+import { memo } from 'react';
 import { Link, useLocation } from 'react-router';
 
-import { ListItemButton, ListItemIcon, ListItemText } from '@mui/material';
+import { Box, ListItemButton, ListItemIcon, ListItemText } from '@mui/material';
 import type { SvgIconProps, SxProps, Theme } from '@mui/material';
 
 import { routeMatches } from 'utils';
@@ -11,60 +11,52 @@ interface LayoutMenuItemProps {
   label: string;
   to: string;
   disabled?: boolean;
+  badge?: boolean;
 }
 
 const LayoutMenuItemComponent = ({
   icon: Icon,
   label,
   to,
-  disabled
+  disabled,
+  badge
 }: LayoutMenuItemProps) => {
   const { pathname } = useLocation();
 
-  const selected = useMemo(() => routeMatches(to, pathname), [to, pathname]);
+  const selected = routeMatches(to, pathname);
 
-  // Memoize dynamic styles based on selected state
-  const buttonStyles: SxProps<Theme> = useMemo(
-    () => ({
-      transition: 'all 0.05s cubic-bezier(0.55, 0.085, 0.68, 0.53)',
-      backgroundColor: selected ? 'rgba(144, 202, 249, 0.1)' : 'transparent',
-      borderRadius: '8px',
-      margin: '2px 8px',
-      '&:hover': {
-        backgroundColor: 'rgba(68, 82, 211, 0.39)'
-      },
-      '&::before': {
-        content: '""',
-        position: 'absolute',
-        left: 0,
-        top: 0,
-        bottom: 0,
-        width: selected ? '3px' : '0px',
-        backgroundColor: '#90caf9',
-        transition: 'width 0.05s cubic-bezier(0.55, 0.085, 0.68, 0.53)'
-      }
-    }),
-    [selected]
-  );
+  const buttonStyles: SxProps<Theme> = {
+    transition: 'all 0.05s cubic-bezier(0.55, 0.085, 0.68, 0.53)',
+    backgroundColor: selected ? 'rgba(144, 202, 249, 0.1)' : 'transparent',
+    borderRadius: '8px',
+    margin: '2px 8px',
+    '&:hover': {
+      backgroundColor: 'rgba(68, 82, 211, 0.39)'
+    },
+    '&::before': {
+      content: '""',
+      position: 'absolute',
+      left: 0,
+      top: 0,
+      bottom: 0,
+      width: selected ? '3px' : '0px',
+      backgroundColor: '#90caf9',
+      transition: 'width 0.05s cubic-bezier(0.55, 0.085, 0.68, 0.53)'
+    }
+  };
 
-  const iconStyles: SxProps<Theme> = useMemo(
-    () => ({
-      color: selected ? '#90caf9' : '#9e9e9e',
-      transition: 'color 0.05s cubic-bezier(0.55, 0.085, 0.68, 0.53)',
-      transform: selected ? 'scale(1.1)' : 'scale(1)',
-      transitionProperty: 'color, transform'
-    }),
-    [selected]
-  );
+  const iconStyles: SxProps<Theme> = {
+    color: selected ? '#90caf9' : '#9e9e9e',
+    transition: 'color 0.05s cubic-bezier(0.55, 0.085, 0.68, 0.53)',
+    transform: selected ? 'scale(1.1)' : 'scale(1)',
+    transitionProperty: 'color, transform'
+  };
 
-  const textStyles: SxProps<Theme> = useMemo(
-    () => ({
-      color: selected ? '#90caf9' : '#f5f5f5',
-      transition: 'color 0.05s cubic-bezier(0.55, 0.085, 0.68, 0.53)',
-      transitionProperty: 'color, font-weight'
-    }),
-    [selected]
-  );
+  const textStyles: SxProps<Theme> = {
+    color: selected ? '#90caf9' : '#f5f5f5',
+    transition: 'color 0.05s cubic-bezier(0.55, 0.085, 0.68, 0.53)',
+    transitionProperty: 'color, font-weight'
+  };
 
   return (
     <ListItemButton
@@ -78,6 +70,20 @@ const LayoutMenuItemComponent = ({
         <Icon />
       </ListItemIcon>
       <ListItemText sx={textStyles}>{label}</ListItemText>
+      {badge && (
+        <Box
+          aria-label="update available"
+          sx={{
+            width: 8,
+            height: 8,
+            ml: 1,
+            borderRadius: '50%',
+            backgroundColor: '#ffeb3b',
+            boxShadow: '0 0 6px rgba(255, 235, 59, 0.8)',
+            flexShrink: 0
+          }}
+        />
+      )}
     </ListItemButton>
   );
 };

interface/src/components/layout/ListMenuItem.tsx

@@ -5,6 +5,7 @@ import { Link } from 'react-router';
 import NavigateNextIcon from '@mui/icons-material/NavigateNext';
 import {
   Avatar,
+  Box,
   ListItem,
   ListItemAvatar,
   ListItemButton,
@@ -20,6 +21,7 @@ interface ListMenuItemProps {
   text: string;
   to?: string;
   disabled?: boolean;
+  badge?: boolean;
 }
 
 const iconStyles: CSSProperties = {
@@ -28,15 +30,40 @@ const iconStyles: CSSProperties = {
   verticalAlign: 'middle'
 };
 
+const Badge = () => (
+  <Box
+    component="span"
+    aria-label="update available"
+    sx={{
+      display: 'inline-block',
+      width: 8,
+      height: 8,
+      ml: 1,
+      verticalAlign: 'middle',
+      borderRadius: '50%',
+      backgroundColor: '#ffeb3b',
+      boxShadow: '0 0 6px rgba(255, 235, 59, 0.8)'
+    }}
+  />
+);
+
 const RenderIcon = memo(
-  ({ icon: Icon, bgcolor, label, text }: ListMenuItemProps) => (
+  ({ icon: Icon, bgcolor, label, text, badge }: ListMenuItemProps) => (
     <>
       <ListItemAvatar>
         <Avatar sx={{ bgcolor, color: 'white' }}>
           <Icon />
         </Avatar>
       </ListItemAvatar>
-      <ListItemText primary={label} secondary={text} />
+      <ListItemText
+        primary={
+          <>
+            {label}
+            {badge && <Badge />}
+          </>
+        }
+        secondary={text}
+      />
     </>
   )
 );
@@ -47,7 +74,8 @@ const LayoutMenuItem = ({
   label,
   text,
   to,
-  disabled
+  disabled,
+  badge
 }: ListMenuItemProps) => (
   <>
     {to && !disabled ? (
@@ -65,6 +93,7 @@ const LayoutMenuItem = ({
             {...(bgcolor && { bgcolor })}
             label={label}
             text={text}
+            {...(badge && { badge })}
           />
         </ListItemButton>
       </ListItem>
@@ -75,6 +104,7 @@ const LayoutMenuItem = ({
           {...(bgcolor && { bgcolor })}
           label={label}
           text={text}
+          {...(badge && { badge })}
         />
       </ListItem>
     )}

interface/src/components/routing/BlockNavigation.tsx

@@ -1,4 +1,4 @@
-import { memo, useCallback } from 'react';
+import { memo } from 'react';
 import type { Blocker } from 'react-router';
 
 import {
@@ -15,13 +15,13 @@ import { useI18nContext } from 'i18n/i18n-react';
 const BlockNavigation = ({ blocker }: { blocker: Blocker }) => {
   const { LL } = useI18nContext();
 
-  const handleReset = useCallback(() => {
+  const handleReset = () => {
     blocker.reset?.();
-  }, [blocker]);
+  };
 
-  const handleProceed = useCallback(() => {
+  const handleProceed = () => {
     blocker.proceed?.();
-  }, [blocker]);
+  };
 
   return (
     <Dialog sx={dialogStyle} open={blocker.state === 'blocked'}>

interface/src/components/routing/RouterTabs.tsx

@@ -1,4 +1,4 @@
-import { memo, useCallback } from 'react';
+import { memo } from 'react';
 import type { FC } from 'react';
 import { useNavigate } from 'react-router';
 
@@ -16,12 +16,9 @@ const RouterTabs: FC<RouterTabsProps> = ({ value, children }) => {
   const theme = useTheme();
   const smallDown = useMediaQuery(theme.breakpoints.down('sm'));
 
-  const handleTabChange = useCallback(
-    (_event: unknown, path: string) => {
-      void navigate(path);
-    },
-    [navigate]
-  );
+  const handleTabChange = (_event: unknown, path: string) => {
+    void navigate(path);
+  };
 
   return (
     <Tabs

interface/src/components/upload/DragNdrop.tsx

@@ -91,7 +91,9 @@ const DragNdrop = ({ text, onFileSelected }: DragNdropProps) => {
       ).upgradeImportantMessageType;
       setUpgradeImportantMessageType(upgradeImportantMessageType_n);
       if (upgradeImportantMessageType_n === 0) {
-        onFileSelected(file);
+        if (file) {
+          onFileSelected(file);
+        }
       }
     })
     .onError((error) => {
@@ -213,19 +215,8 @@ const DragNdrop = ({ text, onFileSelected }: DragNdropProps) => {
               <DialogContent dividers>
                 {upgradeImportantMessageType === 2 &&
                   LL.UPGRADE_IMPORTANT_MESSAGES_2()}
-                {upgradeImportantMessageType === 1 && (
-                  <>
-                    {LL.UPGRADE_IMPORTANT_MESSAGES_1()}
-                    <Typography sx={{ mt: 2 }}>
-                      <Link
-                        to="/settings/downloadUpload"
-                        style={{ color: 'lightblue' }}
-                      >
-                        {LL.DOWNLOAD_SYSTEM_BACKUP()}
-                      </Link>
-                    </Typography>
-                  </>
-                )}{' '}
+                {upgradeImportantMessageType === 1 &&
+                  LL.UPGRADE_IMPORTANT_MESSAGES_1()}
                 <Typography sx={{ mt: 2 }}>
                   <Link
                     to="https://docs.emsesp.org/FAQ#upgrading-the-firmware"

interface/src/contexts/authentication/Authentication.tsx

@@ -3,6 +3,7 @@ import type { FC } from 'react';
 import { redirect } from 'react-router';
 import { toast } from 'react-toastify';
 
+import { callAction } from 'api/app';
 import { ACCESS_TOKEN } from 'api/endpoints';
 
 import * as AuthenticationApi from 'components/routing/authentication';
@@ -10,7 +11,7 @@ import { useRequest } from 'alova/client';
 import { LoadingSpinner } from 'components';
 import { verifyAuthorization } from 'components/routing/authentication';
 import { useI18nContext } from 'i18n/i18n-react';
-import type { Me } from 'types';
+import type { Me, VersionsResponse } from 'types';
 import type { RequiredChildrenProps } from 'utils';
 
 import { AuthenticationContext } from './context';
@@ -20,17 +21,34 @@ const Authentication: FC<RequiredChildrenProps> = ({ children }) => {
 
   const [initialized, setInitialized] = useState<boolean>(false);
   const [me, setMe] = useState<Me>();
+  const [versions, setVersions] = useState<VersionsResponse>();
 
   const { send: sendVerifyAuthorization } = useRequest(verifyAuthorization(), {
     immediate: false
   });
 
+  const { send: sendGetVersions } = useRequest(
+    () => callAction({ action: 'getVersions' }),
+    { immediate: false }
+  )
+    .onSuccess((event) => {
+      setVersions(event.data as VersionsResponse);
+    })
+    .onError(() => {
+      setVersions(undefined);
+    });
+
+  const refreshVersions = useCallback(async () => {
+    await sendGetVersions().catch(() => undefined);
+  }, []);
+
   const signIn = (accessToken: string) => {
     try {
       AuthenticationApi.getStorage().setItem(ACCESS_TOKEN, accessToken);
       const decodedMe = AuthenticationApi.decodeMeJWT(accessToken);
       setMe(decodedMe);
       toast.success(LL.LOGGED_IN({ name: decodedMe.username }));
+      void refreshVersions();
     } catch {
       setMe(undefined);
       throw new Error('Failed to parse JWT');
@@ -40,6 +58,7 @@ const Authentication: FC<RequiredChildrenProps> = ({ children }) => {
   const signOut = (doRedirect: boolean) => {
     AuthenticationApi.clearAccessToken();
     setMe(undefined);
+    setVersions(undefined);
     if (doRedirect) {
       redirect('/');
     }
@@ -49,8 +68,9 @@ const Authentication: FC<RequiredChildrenProps> = ({ children }) => {
     const accessToken = AuthenticationApi.getStorage().getItem(ACCESS_TOKEN);
     if (accessToken) {
       await sendVerifyAuthorization()
-        .then(() => {
+        .then(async () => {
           setMe(AuthenticationApi.decodeMeJWT(accessToken));
+          await refreshVersions();
           setInitialized(true);
         })
         .catch(() => {
@@ -67,15 +87,16 @@ const Authentication: FC<RequiredChildrenProps> = ({ children }) => {
     void refresh();
   }, [refresh]);
 
-  // cache object to prevent re-renders
   const obj = useMemo(
     () => ({
       signIn,
       signOut,
       refresh,
-      ...(me && { me })
+      refreshVersions,
+      ...(me && { me }),
+      ...(versions && { versions })
     }),
-    [signIn, signOut, me, refresh]
+    [signIn, signOut, me, refresh, refreshVersions, versions]
   );
 
   if (initialized) {

interface/src/contexts/authentication/context.ts

@@ -1,12 +1,14 @@
 import { createContext } from 'react';
 
-import type { Me } from 'types';
+import type { Me, VersionsResponse } from 'types';
 
 export interface AuthenticationContextValue {
   refresh: () => Promise<void>;
   signIn: (accessToken: string) => void;
   signOut: (redirect: boolean) => void;
   me?: Me;
+  versions?: VersionsResponse;
+  refreshVersions: () => Promise<void>;
 }
 
 const AuthenticationContextDefaultValue = {} as AuthenticationContextValue;

interface/src/i18n/cz/index.ts

@@ -247,8 +247,7 @@ const cz: Translation = {
   TIME_ZONE: 'Časová zóna',
   ACCESS_POINT: 'Přístupový bod',
   AP_PROVIDE: 'Povolit přístupový bod',
-  AP_PROVIDE_TEXT_1: 'Vždy',
-  AP_PROVIDE_TEXT_2: 'Když je WiFi odpojena',
+  AP_PROVIDE_TEXT_2: 'Když je síťové připojení stratené',
   AP_PROVIDE_TEXT_3: 'Nikdy',
   AP_PREFERRED_CHANNEL: 'Preferovaný kanál',
   AP_HIDE_SSID: 'Skrýt SSID',
@@ -350,7 +349,7 @@ const cz: Translation = {
   NO_DATA_1: 'Nebyly nalezeny žádné oblíbené entity. Použijte modul',
   NO_DATA_2: 'pro jejich výběr.',
   NO_DATA_3: 'Pro zobrazení všech dostupných entit navštivte stránku',
-  NO_GPIO:'Nebylo nalezeno žádné volné GPIO',
+  NO_GPIO: 'Nebylo nalezeno žádné volné GPIO',
   THIS_VERSION: 'Tato verze',
   PLATFORM: 'Platforma',
   RELEASE_TYPE: 'Typ sestavení',
@@ -362,7 +361,7 @@ const cz: Translation = {
   STORED_VERSIONS: 'Uložené verze',
   ONLINE_HELP: 'online nápověda',
   UPGRADE_IMPORTANT_MESSAGES: 'Aktualizovat důležité zprávy',
-  UPGRADE_IMPORTANT_MESSAGES_1: 'Tato aktualizace vyžaduje obnovení továrního nastavení. Ujistěte se, že jste vytvořili zálohu své konfigurace a nastavení před pokračováním a nahrajte ji po instalaci nové verze.',
+  UPGRADE_IMPORTANT_MESSAGES_1: 'Tato aktualizace vyžaduje obnovení továrního nastavení. Ujistěte se, že nejprve stáhnete systémovou zálohu před pokračováním a poté nahrajte tento soubor po instalaci nové verze.',
   UPGRADE_IMPORTANT_MESSAGES_2: 'Aktualizujete se na novou hlavní verzi. Ujistěte se, že jste přečetli ChangeLog pro jakékoliv závažné změny.',
   WARNING_SYSTEM_BACKUP: 'Toto vytvoří zálohu vašich celých systémových konfigurací a nastavení. Všechna hesla budou v zálohovém souboru čitelná. Buďte opatrní při sdílení! Opravdu chcete pokračovat?'
 

interface/src/i18n/de/index.ts

@@ -187,7 +187,7 @@ const de: Translation = {
   COMPACT: 'Kompakte Darstellung',
   DOWNLOAD_SETTINGS_TEXT: 'Erstellen Sie eine Sicherung Ihrer Konfigurationen und Einstellungen',
   DOWNLOAD_SETTINGS_TEXT2: 'Exportiere alle Werte',
-  DOWNLOAD_SYSTEM_BACKUP: 'System Sicherung',
+  DOWNLOAD_SYSTEM_BACKUP: 'Systemsicherung',
   UPLOAD_TEXT: 'Laden Sie eine neue Firmware-Datei (.bin) oder eine Sicherungsdatei (.json) hoch',
   UPLOAD_DROP_TEXT: 'Legen Sie eine Firmware-Datei (.bin) ab oder klicken Sie hier',
   ERROR: 'Unerwarteter Fehler, bitte versuchen Sie es erneut.',
@@ -247,8 +247,7 @@ const de: Translation = {
   TIME_ZONE: 'Zeitzone',
   ACCESS_POINT: 'Zugangspunkt',
   AP_PROVIDE: 'Aktiviere Zugangspunkt',
-  AP_PROVIDE_TEXT_1: 'Immer',
-  AP_PROVIDE_TEXT_2: 'Wenn WiFi nicht verbunden',
+  AP_PROVIDE_TEXT_2: 'Wenn Netzwerkverbindung verloren geht',
   AP_PROVIDE_TEXT_3: 'Niemals',
   AP_PREFERRED_CHANNEL: 'Bevorzugter Kanal',
   AP_HIDE_SSID: 'Verstecke SSID',
@@ -350,7 +349,7 @@ const de: Translation = {
   NO_DATA_1: 'Keine favorisierten EMS-Entitäten gefunden! Verwenden Sie das Modul',
   NO_DATA_2: ', um sie zu markieren.',
   NO_DATA_3: 'Um alle verfügbaren Entitäten anzuzeigen, gehen Sie zu',
-  NO_GPIO:'Keine freien GPIO gefunden',
+  NO_GPIO: 'Keine freien GPIO gefunden',
   THIS_VERSION: 'Diese Version',
   PLATFORM: 'Plattform',
   RELEASE_TYPE: 'Release Typ',
@@ -362,9 +361,9 @@ const de: Translation = {
   STORED_VERSIONS: 'Gespeicherte Versionen',
   ONLINE_HELP: 'Online-Hilfe',
   UPGRADE_IMPORTANT_MESSAGES: 'Wichtige Nachrichten aktualisieren',
-  UPGRADE_IMPORTANT_MESSAGES_1: 'Diese Aktualisierung erfordert eine Werkseinstellung. Stellen Sie sicher, dass Sie eine Sicherung Ihrer Konfiguration und Einstellungen vor dem Fortfahren erstellt haben und diese nach der Installation der neuen Version hochladen.',
+  UPGRADE_IMPORTANT_MESSAGES_1: 'Für diese Aktualisierung ist ein Werksreset erforderlich. Stellen Sie sicher, dass Sie zuerst eine Systemsicherung herunterladen, bevor Sie fortfahren, und laden Sie diese Datei dann nach der Installation der neuen Version hoch.',
   UPGRADE_IMPORTANT_MESSAGES_2: 'Sie aktualisieren auf eine neue Hauptversion. Stellen Sie sicher, dass Sie den ChangeLog für alle wichtigen Änderungen gelesen haben.',
-  WARNING_SYSTEM_BACKUP: 'Dies wird eine Sicherung Ihrer vollständigen Systemkonfiguration und -einstellungen erstellen. Alle Passwörter werden im Sicherungsdatei lesbar sein. Seien Sie vorsichtig beim Teilen! Möchten Sie fortfahren?'
+  WARNING_SYSTEM_BACKUP: 'Dies wird eine Sicherung Ihrer vollständigen Systemkonfiguration und Einstellungen erstellen. Alle Passwörter werden in dieser Sicherungsdatei lesbar sein. Seien Sie vorsichtig beim Teilen! Möchten Sie fortfahren?'
 
 };
 

interface/src/i18n/en/index.ts

@@ -247,8 +247,7 @@ const en: Translation = {
   TIME_ZONE: 'Time Zone',
   ACCESS_POINT: 'Access Point',
   AP_PROVIDE: 'Enable Access Point',
-  AP_PROVIDE_TEXT_1: 'Always',
-  AP_PROVIDE_TEXT_2: 'When WiFi is disconnected',
+  AP_PROVIDE_TEXT_2: 'When network connection is lost',
   AP_PROVIDE_TEXT_3: 'Never',
   AP_PREFERRED_CHANNEL: 'Preferred Channel',
   AP_HIDE_SSID: 'Hide SSID',
@@ -350,7 +349,7 @@ const en: Translation = {
   NO_DATA_1: 'No favorite EMS entities found yet. Use the',
   NO_DATA_2: 'module to mark them.',
   NO_DATA_3: 'To see all available entities go to',
-  NO_GPIO:'No available GPIO found',
+  NO_GPIO: 'No available GPIO found',
   THIS_VERSION: 'This Version',
   PLATFORM: 'Platform',
   RELEASE_TYPE: 'Release Type',
@@ -362,7 +361,7 @@ const en: Translation = {
   STORED_VERSIONS: 'Stored Versions',
   ONLINE_HELP: 'online help',
   UPGRADE_IMPORTANT_MESSAGES: 'Upgrade Important Messages',
-  UPGRADE_IMPORTANT_MESSAGES_1: 'This upgrade requires a factory reset. Make sure you have made a backup of your configuration and settings before continuing, and upload this after the new version is installed.',
+  UPGRADE_IMPORTANT_MESSAGES_1: 'This upgrade requires a factory reset. Make sure you first download a System Backup before continuing, and then upload this file after the new version is installed.',
   UPGRADE_IMPORTANT_MESSAGES_2: 'You are upgrading to a new major version. Make sure you have read the ChangeLog for any breaking changes.',
   WARNING_SYSTEM_BACKUP: 'This will create a backup of your full system configuration and settings. All passwords will be readable in the backup file. Be careful with sharing! Do you want to continue?'
 

interface/src/i18n/fr/index.ts

@@ -247,8 +247,7 @@ const fr: Translation = {
   TIME_ZONE: 'Fuseau horaire',
   ACCESS_POINT: "Point d'accès",
   AP_PROVIDE: "Activer le Point d'Accès",
-  AP_PROVIDE_TEXT_1: 'toujours',
-  AP_PROVIDE_TEXT_2: 'quand le WiFi est déconnecté',
+  AP_PROVIDE_TEXT_2: 'quand la connexion réseau est perdue',
   AP_PROVIDE_TEXT_3: 'jamais',
   AP_PREFERRED_CHANNEL: 'Canal préféré',
   AP_HIDE_SSID: 'Cacher le SSID',
@@ -350,7 +349,7 @@ const fr: Translation = {
   NO_DATA_1: 'Aucune entité EMS favorite trouvée. Utilisez le',
   NO_DATA_2: 'module pour les marquer.',
   NO_DATA_3: 'Pour voir toutes les entités disponibles, aller à',
-  NO_GPIO:"Aucun GPIO disponible n'a été détecté",
+  NO_GPIO: "Aucun GPIO disponible n'a été détecté",
   THIS_VERSION: 'Cette version',
   PLATFORM: 'Plateforme',
   RELEASE_TYPE: 'Type de version',
@@ -362,7 +361,7 @@ const fr: Translation = {
   STORED_VERSIONS: 'Versions stockées',
   ONLINE_HELP: 'aide en ligne',
   UPGRADE_IMPORTANT_MESSAGES: 'Mettre à jour les messages importants',
-  UPGRADE_IMPORTANT_MESSAGES_1: 'Cette mise à jour nécessite une réinitialisation de fabrique. Assurez-vous d\'avoir créé une sauvegarde de vos configurations et paramètres avant de continuer et de la charger après l\'installation de la nouvelle version.',
+  UPGRADE_IMPORTANT_MESSAGES_1: 'Cette mise à jour nécessite une réinitialisation de fabrique. Assurez-vous de télécharger une sauvegarde système avant de continuer, et de la charger après l\'installation de la nouvelle version.',
   UPGRADE_IMPORTANT_MESSAGES_2: 'Vous mettez à jour vers une nouvelle version majeure. Assurez-vous de lire le ChangeLog pour tout changement important.',
   WARNING_SYSTEM_BACKUP: 'Cela créera une sauvegarde de votre configuration et paramètres complets. Tous les mots de passe seront lisibles dans le fichier de sauvegarde. Soyez prudent avec le partage ! Voulez-vous continuer ?'
 

interface/src/i18n/it/index.ts

@@ -247,8 +247,7 @@ const it: Translation = {
   TIME_ZONE: 'Fuso orario',
   ACCESS_POINT: 'Access Point',
   AP_PROVIDE: 'Abilita Access Point',
-  AP_PROVIDE_TEXT_1: 'sempre',
-  AP_PROVIDE_TEXT_2: 'quando WiFi é disconnessa',
+  AP_PROVIDE_TEXT_2: 'quando la connessione di rete è persa',
   AP_PROVIDE_TEXT_3: 'mai',
   AP_PREFERRED_CHANNEL: 'Canale preferito',
   AP_HIDE_SSID: 'Nascondi SSID',
@@ -350,7 +349,7 @@ const it: Translation = {
   NO_DATA_1: 'Nessuna entità EMS preferita trovata. Usa il',
   NO_DATA_2: 'modulo per marcarle.',
   NO_DATA_3: 'Per vedere tutte le entità disponibili vai a',
-  NO_GPIO:'Non è stato trovato alcun GPIO disponibile',
+  NO_GPIO: 'Non è stato trovato alcun GPIO disponibile',
   THIS_VERSION: 'Questa versione',
   PLATFORM: 'Piattaforma',
   RELEASE_TYPE: 'Tipo di rilascio',
@@ -362,7 +361,7 @@ const it: Translation = {
   STORED_VERSIONS: 'Versioni memorizzate',
   ONLINE_HELP: 'aiuto online',
   UPGRADE_IMPORTANT_MESSAGES: 'Aggiorna Messaggi Importanti',
-  UPGRADE_IMPORTANT_MESSAGES_1: 'Questa aggiornamento richiede un ripristino di fabbrica. Assicurati di aver creato un backup delle tue configurazioni e impostazioni prima di continuare e di caricarlo dopo l\'installazione della nuova versione.',
+  UPGRADE_IMPORTANT_MESSAGES_1: 'Questa aggiornamento richiede un ripristino di fabbrica. Assicurati di prima scaricare un backup del sistema prima di continuare, e poi caricare questo file dopo l\'installazione della nuova versione.',
   UPGRADE_IMPORTANT_MESSAGES_2: 'Stai aggiornando a una nuova versione principale. Assicurati di aver letto il ChangeLog per qualsiasi cambiamento importante.',
   WARNING_SYSTEM_BACKUP: 'Questo creerà un backup delle tue configurazioni e impostazioni complete. Tutte le password saranno leggibili nel file di backup. Sei sicuro di voler continuare?'
 

interface/src/i18n/nl/index.ts

@@ -247,8 +247,7 @@ const nl: Translation = {
   TIME_ZONE: 'Tijdzone',
   ACCESS_POINT: 'Access Point',
   AP_PROVIDE: 'Activeer Access Point',
-  AP_PROVIDE_TEXT_1: 'altijd',
-  AP_PROVIDE_TEXT_2: 'als WiFi niet is verbonden',
+  AP_PROVIDE_TEXT_2: 'als netwerk verbinding verloren gaat',
   AP_PROVIDE_TEXT_3: 'nooit',
   AP_PREFERRED_CHANNEL: 'Voorkeurskanaal',
   AP_HIDE_SSID: 'SSID verbergen',
@@ -350,7 +349,7 @@ const nl: Translation = {
   NO_DATA_1: 'Er zijn nog geen favoriete EMS-entiteiten gevonden. Gebruik de',
   NO_DATA_2: 'module om ze te markeren.',
   NO_DATA_3: 'Om alle beschikbare entiteiten te zien, ga naar',
-  NO_GPIO:'Er is geen beschikbare GPIO gevonden',
+  NO_GPIO: 'Er is geen beschikbare GPIO gevonden',
   THIS_VERSION: 'Deze Versie',
   PLATFORM: 'Platform',
   RELEASE_TYPE: 'Release Typ',
@@ -362,7 +361,7 @@ const nl: Translation = {
   STORED_VERSIONS: 'Opgeslagen versies',
   ONLINE_HELP: 'online help',
   UPGRADE_IMPORTANT_MESSAGES: 'Upgrade Belangrijke Berichten',
-  UPGRADE_IMPORTANT_MESSAGES_1: 'Deze upgrade vereist een fabrieksinstelling. Zorg ervoor dat u een back-up van uw configuratie en instellingen hebt gemaakt voordat u doorgaat en upload deze na de installatie van de nieuwe versie.',
+  UPGRADE_IMPORTANT_MESSAGES_1: 'Deze upgrade vereist een fabrieksinstelling. Zorg ervoor dat u eerst een Systeem Backup download voordat u doorgaat, en upload deze file na de installatie van de nieuwe versie.',
   UPGRADE_IMPORTANT_MESSAGES_2: 'U updatet naar een nieuwe grote versie. Zorg ervoor dat u de ChangeLog hebt gelezen voor alle brekende wijzigingen.',
   WARNING_SYSTEM_BACKUP: 'Dit zal een back-up van uw volledige systeemconfiguratie en instellingen maken. Alle wachtwoorden zijn leesbaar in het back-upbestand. Wees voorzichtig bij delen! Wilt u doorgaan?'
 

interface/src/i18n/no/index.ts

@@ -247,8 +247,7 @@ const no: Translation = {
   TIME_ZONE: 'Tidssone',
   ACCESS_POINT: 'Aksesspunkt',
   AP_PROVIDE: 'Aktiver Aksesspunkt',
-  AP_PROVIDE_TEXT_1: 'alltid',
-  AP_PROVIDE_TEXT_2: 'når WiFi er utilgjengelig',
+  AP_PROVIDE_TEXT_2: 'når nettverksforbindelsen er utilgjengelig',
   AP_PROVIDE_TEXT_3: 'aldri',
   AP_PREFERRED_CHANNEL: 'Foretrukket kanal',
   AP_HIDE_SSID: 'Skjul SSID',
@@ -350,7 +349,7 @@ const no: Translation = {
   NO_DATA_1: 'Ingen favoritte EMS enheter funnet enda. Bruk',
   NO_DATA_2: 'modul for å markere dem.',
   NO_DATA_3: 'For å se alle tilgjengelige enheter, gå til',
-  NO_GPIO:'Det ble ikke funnet noen tilgjengelige GPIO-porter',
+  NO_GPIO: 'Det ble ikke funnet noen tilgjengelige GPIO-porter',
   THIS_VERSION: 'Denne versjonen',
   PLATFORM: 'Plattform',
   RELEASE_TYPE: 'Utgivelses type',
@@ -362,7 +361,7 @@ const no: Translation = {
   STORED_VERSIONS: 'Lagret versjoner',
   ONLINE_HELP: 'online hjelp',
   UPGRADE_IMPORTANT_MESSAGES: 'Oppdater viktige meldinger',
-  UPGRADE_IMPORTANT_MESSAGES_1: 'Denne oppdateringen krever en fabriksinstilling. Sørg for at du har laget en sikkerhetskopi av din konfigurasjon og innstillinger før du fortsetter, og last denne opp etter at den nye versjonen er installert.',
+  UPGRADE_IMPORTANT_MESSAGES_1: 'Denne oppdateringen krever en fabriksinstilling. Sørg for at du først lastet ned en System Backup før du fortsetter, og last denne filen etter at den nye versjonen er installert.',
   UPGRADE_IMPORTANT_MESSAGES_2: 'Du oppdaterer til en ny hovedversjon. Sørg for at du har lest ChangeLog for eventuelle bruddende endringer.',
   WARNING_SYSTEM_BACKUP: 'Dette vil lage en sikkerhetskopi av din fullstendige systemkonfigurasjon og innstillinger. Alle passord vil være lesbare i sikkerhetskopien. Vær forsiktig med deling! Vil du fortsette?'
 

interface/src/i18n/pl/index.ts

@@ -247,7 +247,6 @@ const pl: BaseTranslation = {
   TIME_ZONE: 'Strefa czasowa',
   ACCESS_POINT: '{{Punkt|punktu|}} {{dostępowy|dostępowego|}}',
   AP_PROVIDE: 'Punkt dostępowy',
-  AP_PROVIDE_TEXT_1: 'zawsze aktywny',
   AP_PROVIDE_TEXT_2: 'aktywny jeśli brak połączenia z siecią',
   AP_PROVIDE_TEXT_3: 'nieaktywny',
   AP_PREFERRED_CHANNEL: 'Preferowany kanał',
@@ -350,7 +349,7 @@ const pl: BaseTranslation = {
   NO_DATA_1: 'Brak ulubionych encji EMS. Użyj',
   NO_DATA_2: 'moduł do ich oznaczenia.',
   NO_DATA_3: 'Aby zobaczyć wszystkie dostępne encje przejdź do',
-  NO_GPIO:'Nie znaleziono dostępnych pinów GPIO',
+  NO_GPIO: 'Nie znaleziono dostępnych pinów GPIO',
   THIS_VERSION: 'Ta wersja',
   PLATFORM: 'Platforma',
   RELEASE_TYPE: 'Typ wydania',
@@ -362,7 +361,7 @@ const pl: BaseTranslation = {
   STORED_VERSIONS: 'Zapisane wersje',
   ONLINE_HELP: 'pomoc online',
   UPGRADE_IMPORTANT_MESSAGES: 'Aktualizuj ważne wiadomości',
-  UPGRADE_IMPORTANT_MESSAGES_1: 'Ta aktualizacja wymaga resetu fabrycznego. Upewnij się, że masz utworzoną kopię swoich ustawień i konfiguracji przed kontynuowaniem i przesuń ją po zainstalowaniu nowej wersji.',
+  UPGRADE_IMPORTANT_MESSAGES_1: 'Ta aktualizacja wymaga resetu fabrycznego. Upewnij się, że najpierw pobierzesz kopię zapasową systemu przed kontynuowaniem, a następnie przesuń tę plik po zainstalowaniu nowej wersji.',
   UPGRADE_IMPORTANT_MESSAGES_2: 'Aktualizujesz się do nowej głównej wersji. Upewnij się, że przeczytałeś ChangeLog dla wszelkich istotnych zmian.',
   WARNING_SYSTEM_BACKUP: 'To spowoduje utworzenie kopii zapasowej całej konfiguracji i ustawień systemu. Wszystkie hasła będą widoczne w pliku kopii zapasowej. Bądź ostrożny przy udostępnianiu! Chcesz kontynuować?'
 

interface/src/i18n/sk/index.ts

@@ -247,8 +247,7 @@ const sk: Translation = {
   TIME_ZONE: 'Časová zóna',
   ACCESS_POINT: 'Prístupový bod',
   AP_PROVIDE: 'Povoliť prístupový bod',
-  AP_PROVIDE_TEXT_1: 'vždy',
-  AP_PROVIDE_TEXT_2: 'keď je WiFi odpojená',
+  AP_PROVIDE_TEXT_2: 'keď je sieťové pripojenie stratené',
   AP_PROVIDE_TEXT_3: 'nikdy',
   AP_PREFERRED_CHANNEL: 'Preferovaný kanál',
   AP_HIDE_SSID: 'Skryť SSID',
@@ -350,7 +349,7 @@ const sk: Translation = {
   NO_DATA_1: 'Nenašli sa žiadne obľúbené entity EMS. Použite',
   NO_DATA_2: 'modul na ich označenie.',
   NO_DATA_3: 'Ak chcete zobraziť všetky dostupné entity, prejdite na',
-  NO_GPIO:'Nebol nájdený žiadny dostupný GPIO',
+  NO_GPIO: 'Nebol nájdený žiadny dostupný GPIO',
   THIS_VERSION: 'Táto verzia',
   PLATFORM: 'Platforma',
   RELEASE_TYPE: 'Typ vydania',
@@ -362,7 +361,7 @@ const sk: Translation = {
   STORED_VERSIONS: 'Uložené verzie',
   ONLINE_HELP: 'online pomoc',
   UPGRADE_IMPORTANT_MESSAGES: 'Aktualizovať dôležité správy',
-  UPGRADE_IMPORTANT_MESSAGES_1: 'Táto aktualizácia vyžaduje reštart základných nastavení. Uistite sa, že ste vytvorili zálohu svojich konfigurácií a nastavení pred pokračovaním a nahrajte ju po instalácii novej verzie.',
+  UPGRADE_IMPORTANT_MESSAGES_1: 'Táto aktualizácia vyžaduje reštart základných nastavení. Uistite sa, že najprv stiahnete systémovú zálohu pred pokračovaním, a potom nahrajte tento súbor po instalácii novej verzie.',
   UPGRADE_IMPORTANT_MESSAGES_2: 'Aktualizujete sa na novú hlavnú verziu. Uistite sa, že ste prečítali ChangeLog pre akékoľvek dôležité zmeny.',
   WARNING_SYSTEM_BACKUP: 'Toto vytvorí zálohu všetkých vašich celých systémových konfigurácií a nastavení. Všetky hesla budú čitateľné v zálohovom súbore. Buďte opatrní pri zdieľaní! Chcete pokračovať?'
 

interface/src/i18n/sv/index.ts

@@ -247,8 +247,7 @@ const sv: Translation = {
   TIME_ZONE: 'Tidszon',
   ACCESS_POINT: 'Accesspunkt',
   AP_PROVIDE: 'Aktivera accesspunkt',
-  AP_PROVIDE_TEXT_1: 'alltid',
-  AP_PROVIDE_TEXT_2: 'när WiFi är nedkopplat',
+  AP_PROVIDE_TEXT_2: 'när nätverksanslutningen är bortkopplad',
   AP_PROVIDE_TEXT_3: 'aldrig',
   AP_PREFERRED_CHANNEL: 'Kanal',
   AP_HIDE_SSID: 'Göm SSID',
@@ -350,7 +349,7 @@ const sv: Translation = {
   NO_DATA_1: 'Inga favorit EMS enheter hittade än. Använd',
   NO_DATA_2: 'modul för att markera dem.',
   NO_DATA_3: 'För att se alla tillgängliga enheter, gå till',
-  NO_GPIO:'Inga tillgängliga GPIO-portar hittades',
+  NO_GPIO: 'Inga tillgängliga GPIO-portar hittades',
   THIS_VERSION: 'Denna version',
   PLATFORM: 'Plattform',
   RELEASE_TYPE: 'Utgivelsestyp',
@@ -362,7 +361,7 @@ const sv: Translation = {
   STORED_VERSIONS: 'Lagrad versioner',
   ONLINE_HELP: 'online hjälp',
   UPGRADE_IMPORTANT_MESSAGES: 'Uppdatera viktiga meddelanden',
-  UPGRADE_IMPORTANT_MESSAGES_1: 'Denna uppdatering kräver en fabriksåterställning. Se till att du har gjort en säkerhetskopia av din konfiguration och inställningar innan du fortsätter och ladda upp denna efter att den nya versionen är installerad.',
+  UPGRADE_IMPORTANT_MESSAGES_1: 'Denna uppdatering kräver en fabriksåterställning. Se till att du först laddar ned en System Backup innan du fortsätter, och ladda upp denna fil efter att den nya versionen är installerad.',
   UPGRADE_IMPORTANT_MESSAGES_2: 'Du uppdaterar till en ny huvudversion. Se till att du har läst ChangeLog för eventuella brkande ändringar.',
   WARNING_SYSTEM_BACKUP: 'Detta kommer att skapa en säkerhetskopia av din fullständiga systemkonfiguration och inställningar. Alla lösenord kommer att vara läsbara i säkerhetskopien. Var försiktig med att dela! Vill du fortsätta?'
 

interface/src/i18n/tr/index.ts

@@ -247,8 +247,7 @@ const tr: Translation = {
   TIME_ZONE: 'Saat dilimi',
   ACCESS_POINT: 'Erişim Noktası',
   AP_PROVIDE: 'Erişim noktasını çalıştır',
-  AP_PROVIDE_TEXT_1: 'her zaman',
-  AP_PROVIDE_TEXT_2: 'Kablosuz bağlantı kesildiğinde',
+  AP_PROVIDE_TEXT_2: 'Ağ bağlantısı kesildiğinde',
   AP_PROVIDE_TEXT_3: 'asla',
   AP_PREFERRED_CHANNEL: 'Tercih edilen kanal',
   AP_HIDE_SSID: 'SSID yi gizle',
@@ -350,7 +349,7 @@ const tr: Translation = {
   NO_DATA_1: 'Henüz bir favori EMS varlığı bulunamadı. Kullanın',
   NO_DATA_2: 'modülünü kullanın.',
   NO_DATA_3: 'Tüm kullanılabilir varlıkları görmek için git',
-  NO_GPIO:'Kullanılabilir GPIO bulunamadı',
+  NO_GPIO: 'Kullanılabilir GPIO bulunamadı',
   THIS_VERSION: 'Bu Sürüm',
   PLATFORM: 'Platforma',
   RELEASE_TYPE: 'Sürüm Tipi',

interface/src/types/ap.ts

@@ -1,5 +1,4 @@
 export enum APProvisionMode {
-  AP_MODE_ALWAYS = 0,
   AP_MODE_DISCONNECTED = 1,
   AP_NEVER = 2
 }

interface/src/types/index.ts

@@ -7,3 +7,4 @@ export * from './ntp';
 export * from './security';
 export * from './signin';
 export * from './system';
+export * from './versions';

interface/src/types/versions.ts

@@ -0,0 +1,23 @@
+// Types for the `getVersions` action response coming from the device.
+// The device proxies the request to emsesp.org/versions.json. If the device
+// is offline the `stable` and `dev` fields are omitted.
+
+export interface VersionInfo {
+  version: string;
+  date: string;
+}
+
+export interface RemoteVersionInfo extends VersionInfo {
+  upgradeable: boolean;
+}
+
+export interface CurrentVersionInfo extends VersionInfo {
+  type: 'stable' | 'dev';
+  upgradeable: boolean;
+}
+
+export interface VersionsResponse {
+  current: CurrentVersionInfo;
+  stable?: RemoteVersionInfo;
+  dev?: RemoteVersionInfo;
+}

interface/src/utils/usePersistState.ts

@@ -1,34 +1,27 @@
-import { useEffect, useMemo, useState } from 'react';
+import { useEffect, useState } from 'react';
 
 export const usePersistState = <T>(
   initial_value: T,
   id: string
 ): [T, (new_state: T) => void] => {
-  // Set initial value - only computed once on mount
-  const _initial_value = useMemo(() => {
+  const [state, setState] = useState<T>(() => {
     try {
-      const local_storage_value_str = localStorage.getItem(`state:${id}`);
-      // If there is a value stored in localStorage, use that
-      if (local_storage_value_str) {
-        return JSON.parse(local_storage_value_str) as T;
+      const stored = localStorage.getItem(`state:${id}`);
+      if (stored) {
+        return JSON.parse(stored) as T;
       }
     } catch (error) {
-      // If parsing fails, fall back to initial_value
       console.warn(
         `Failed to parse localStorage value for key "state:${id}"`,
         error
       );
     }
-    // Otherwise use initial_value that was passed to the function
     return initial_value;
-  }, [id]); // initial_value intentionally omitted - only read on first mount
-
-  const [state, setState] = useState(_initial_value);
+  });
 
   useEffect(() => {
     try {
-      const state_str = JSON.stringify(state);
-      localStorage.setItem(`state:${id}`, state_str);
+      localStorage.setItem(`state:${id}`, JSON.stringify(state));
     } catch (error) {
       console.warn(
         `Failed to save state to localStorage for key "state:${id}"`,

interface/src/utils/useRest.ts

@@ -1,4 +1,4 @@
-import { useCallback, useMemo, useState } from 'react';
+import { useCallback, useState } from 'react';
 import { useBlocker } from 'react-router';
 import { toast } from 'react-toastify';
 
@@ -54,61 +54,44 @@ export const useRest = <D>({ read, update }: RestRequestOptions<D>) => {
     }
   }, [readData]);
 
-  const saveData = useCallback(async () => {
+  const saveData = async () => {
     if (!data) return;
 
-    // Reset states before saving
     setRestartNeeded(false);
     setErrorMessage(undefined);
 
     try {
       await writeData(data as D);
-      // Only update origData on successful save (dirtyFlags cleared by onSuccess handler)
       setOrigData(data as D);
     } catch (error) {
       const message = error instanceof Error ? error.message : String(error);
 
       if (message === REBOOT_ERROR_MESSAGE) {
         setRestartNeeded(true);
-        return; // Early return - save succeeded but needs reboot
+        return;
       }
 
-      // Restore original data on validation error
       if (origData) {
         updateData({ data: origData });
       }
       toast.error(message);
       setErrorMessage(message);
-      setDirtyFlags([]); // Clear flags so user can retry
+      setDirtyFlags([]);
     }
-  }, [data, writeData, origData, updateData]);
+  };
 
-  return useMemo(
-    () => ({
-      loadData,
-      saveData,
-      saving: !!saving,
-      updateDataValue,
-      data: data as D,
-      origData: origData as D,
-      dirtyFlags,
-      setDirtyFlags,
-      setOrigData,
-      blocker,
-      errorMessage,
-      restartNeeded
-    }),
-    [
-      loadData,
-      saveData,
-      saving,
-      updateDataValue,
-      data,
-      origData,
-      dirtyFlags,
-      blocker,
-      errorMessage,
-      restartNeeded
-    ]
-  );
+  return {
+    loadData,
+    saveData,
+    saving: !!saving,
+    updateDataValue,
+    data: data as D,
+    origData: origData as D,
+    dirtyFlags,
+    setDirtyFlags,
+    setOrigData,
+    blocker,
+    errorMessage,
+    restartNeeded
+  };
 };

interface/src/validators/shared.ts

@@ -1,6 +1,20 @@
-import type { InternalRuleItem, ValidateOption } from 'async-validator';
+import type {
+  InternalRuleItem,
+  ValidateFieldsError,
+  ValidateOption
+} from 'async-validator';
 import type Schema from 'async-validator';
 
+export class ValidationError extends Error {
+  readonly fieldErrors: ValidateFieldsError;
+
+  constructor(fieldErrors: ValidateFieldsError) {
+    super('Validation failed');
+    this.name = 'ValidationError';
+    this.fieldErrors = fieldErrors;
+  }
+}
+
 export const validate = <T extends object>(
   validator: Schema,
   source: Partial<T>,
@@ -8,7 +22,7 @@ export const validate = <T extends object>(
 ): Promise<T> =>
   new Promise((resolve, reject) => {
     void validator.validate(source, options ?? {}, (errors, fieldErrors) => {
-      errors ? reject(fieldErrors as Error) : resolve(source as T);
+      errors ? reject(new ValidationError(fieldErrors)) : resolve(source as T);
     });
   });
 

interface/vite.config.ts

@@ -6,16 +6,13 @@ import { Plugin, PluginOption, defineConfig } from 'vite';
 import viteImagemin from 'vite-plugin-imagemin';
 import zlib from 'zlib';
 
-// @ts-expect-error - mock server doesn't have type declarations
-import mockServer from '../mock-api/mockServer.js';
-
 // Constants
 const KB_DIVISOR = 1024;
 const REPEAT_CHAR = '=';
 const REPEAT_COUNT = 50;
 const DEFAULT_OUT_DIR = 'dist';
 const ES_TARGET = 'es2020';
-const CHUNK_SIZE_WARNING_LIMIT = 512;
+const CHUNK_SIZE_WARNING_LIMIT = 1024;
 const ASSETS_INLINE_LIMIT = 4096;
 
 // Common resolve aliases
@@ -100,6 +97,10 @@ const createPreactPlugin = (devToolsEnabled: boolean) =>
 
 // Patch preact/compat to export stub React 19 APIs (use, useOptimistic) so that
 // react-router v7 doesn't trigger IMPORT_IS_UNDEFINED warnings from Rolldown.
+// Rolldown tracks the constant strings used in `React[REACT_USE]` /
+// `React[USE_OPTIMISTIC]` lookups inside react-router and resolves them
+// statically, so simply relying on a runtime guard is not enough — we need
+// matching (stub) exports on the aliased preact/compat module.
 const preactCompatPatchPlugin = (): Plugin => ({
   name: 'preact-compat-react19-patch',
   transform(code, id) {
@@ -130,40 +131,9 @@ const createBasePlugins = (
   return plugins;
 };
 
-// Manual chunk splitting strategy
-const createManualChunks = (detailed = false) => {
-  return (id: string): string | undefined => {
-    if (id.includes('node_modules')) {
-      if (id.includes('preact')) return '@preact';
-      if (detailed) {
-        if (id.includes('react-router')) return '@react-router';
-        if (id.includes('@mui/material')) return '@mui-material';
-        if (id.includes('@mui/icons-material')) return '@mui-icons';
-        if (id.includes('alova')) return '@alova';
-        if (id.includes('typesafe-i18n')) return '@i18n';
-        if (id.includes('react-toastify')) return '@toastify';
-        if (id.includes('@table-library')) return '@table-library';
-        if (id.includes('uuid')) return '@uuid';
-        if (id.includes('axios') || id.includes('fetch')) return '@http';
-        if (id.includes('lodash') || id.includes('ramda')) return '@utils';
-      }
-      return 'vendor';
-    }
-    if (detailed) {
-      // Group circularly dependent modules together to avoid circular chunk warnings
-      // components, app, and utils are tightly coupled, so combine them
-      if (
-        id.includes('components/') ||
-        id.includes('app/') ||
-        id.includes('utils/')
-      ) {
-        return 'app';
-      }
-      // Keep api separate as it's typically more independent
-      if (id.includes('api/')) return 'api';
-    }
-    return undefined;
-  };
+const manualChunks = (id: string): string | undefined => {
+  if (id.includes('node_modules')) return 'vendor';
+  return undefined;
 };
 
 // Common build base configuration
@@ -241,9 +211,11 @@ const imageOptimizationPlugin = {
 };
 
 export default defineConfig(
-  ({ command, mode }: { command: string; mode: string }) => {
+  async ({ command, mode }: { command: string; mode: string }) => {
     if (command === 'serve') {
       console.log(`Preparing for standalone build with server, mode=${mode}`);
+      // @ts-expect-error - mock server doesn't have type declarations
+      const { default: mockServer } = await import('../mock-api/mockServer.js');
       return {
         plugins: [...createBasePlugins(true, true), mockServer()],
         resolve: {
@@ -260,8 +232,7 @@ export default defineConfig(
               changeOrigin: true,
               secure: false
             },
-            '/rest': 'http://localhost:3080',
-            '/gh': 'http://localhost:3080'
+            '/rest': 'http://localhost:3080'
           }
         },
         build: {
@@ -290,7 +261,7 @@ export default defineConfig(
               moduleSideEffects: false
             },
             output: {
-              manualChunks: createManualChunks(false)
+              manualChunks
             }
           }
         }
@@ -330,7 +301,7 @@ export default defineConfig(
             chunkFileNames: 'assets/[name]-[hash].js',
             entryFileNames: 'assets/[name]-[hash].js',
             assetFileNames: 'assets/[name]-[hash].[ext]',
-            manualChunks: createManualChunks(true),
+            manualChunks,
             sourcemap: false
           }
         }