experiment with moving from npm to yarn

interface/.yarnrc.yml

@@ -0,0 +1,9 @@
+plugins:
+  - path: .yarn/plugins/@yarnpkg/plugin-typescript.cjs
+    spec: '@yarnpkg/plugin-typescript'
+
+yarnPath: .yarn/releases/yarn-3.4.1.cjs
+# use these if not using PnP and have node_modules
+# compressionLevel: 0
+# nmMode: hardlinks-local
+# enableGlobalCache: true