diff --git a/platformio.ini-example b/platformio.ini-example
index 6ff32ab56..f2fa1f1a2 100644
--- a/platformio.ini-example
+++ b/platformio.ini-example
@@ -1,6 +1,5 @@
 ;
 ; PlatformIO Project Configuration File for EMS-ESP
-; Uses PlatformIO 4.0
 ;
 
 [platformio]
@@ -8,28 +7,15 @@
 default_envs = debug
 
 [common]
-; -DMYESP_TIMESTAMP -DTESTS -DCRASH -DNO_SERIAL
-; -DDEFAULT_NO_SERIAL if you want a fresh install to use the Serial port 
-debug_flags = -Wall -DCRASH
-release_flags = -w -DDEFAULT_NO_SERIAL
-general_flags = -g -DNO_GLOBAL_EEPROM
-
-arduino_core_2_3_0 = espressif8266@1.5.0
-arduino_core_2_4_0 = espressif8266@1.6.0
-arduino_core_2_4_1 = espressif8266@1.7.3
-arduino_core_2_4_2 = espressif8266@1.8.0
-arduino_core_2_5_0 = espressif8266@2.0.4
-arduino_core_2_5_1 = espressif8266@2.1.1
-arduino_core_2_5_2 = espressif8266@2.2.1
-arduino_core_dev = https://github.com/platformio/platform-espressif8266.git
-arduino_core_latest = espressif8266
+; -DMYESP_TIMESTAMP -DTESTS -DCRASH -DNO_SERIAL -DNO_GLOBAL_EEPROM
+extra_flags = -DNO_GLOBAL_EEPROM
 
 [env]
 board = d1_mini
 ; board = nodemcuv2
 ; board = d1_mini_pro
 framework = arduino
-platform = ${common.arduino_core_latest}
+platform = espressif8266
 lib_deps =
   CRC32
   CircularBuffer
@@ -45,16 +31,17 @@ monitor_speed = 115200
 ;upload_port = ems-esp.local
 
 [env:debug]
-build_flags = ${common.general_flags} ${common.debug_flags} 
+build_type = debug
+build_flags = ${common.extra_flags} -DCRASH
 extra_scripts = pre:scripts/rename_fw.py
 
 [env:clean]
 extra_scripts = pre:scripts/clean_fw.py
 
 [env:release]
-build_flags = ${common.general_flags} ${common.release_flags} 
+build_flags = ${common.extra_flags}
 extra_scripts = pre:scripts/rename_fw.py
 
 [env:checkcode]
-build_flags = ${common.general_flags} ${common.debug_flags}
+build_flags = ${common.extra_flags}
 extra_scripts = scripts/checkcode.py