Feat/typescript and esm with biome

.github/workflows/ci.yml

@@ -12,8 +12,10 @@ jobs:
       - name: corepack
         run: corepack enable
       - name: yarn
-        run: yarn --frozen-lockfile
-      - name: flow
-        run: yarn run flow
+        run: yarn install --immutable
+      - name: typecheck
+        run: yarn run typecheck
+      - name: lint and format
+        run: yarn run check
       - name: test
         run: yarn run test

.yarnrc.yml

@@ -1,3 +1,4 @@
 nodeLinker: node-modules
 
 yarnPath: .yarn/releases/yarn-4.12.0.cjs
+npmRegistryServer: "https://registry.npmjs.org"

appveyor.yml

@@ -8,7 +8,7 @@ install:
   - ps: Install-Product node $env:nodejs_version
   # install modules
   - npm i -g yarn
-  - yarn install --frozen-lockfile
+  - yarn install --immutable
 
 # Post-install test scripts.
 test_script:

biome.json

@@ -0,0 +1,22 @@
+{
+  "$schema": "https://biomejs.dev/schemas/1.9.0/schema.json",
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "recommended": true
+    }
+  },
+  "formatter": {
+    "enabled": true,
+    "indentStyle": "space",
+    "indentWidth": 2
+  },
+    "javascript": {
+        "formatter": {
+            "quoteStyle": "single"
+        }
+    },
+  "files": {
+    "includes": ["src/**/*.ts", "test/**/*.ts"]
+  }
+}