try to set up GitHub actions workflow

Author: danvk

.github/workflows/main.yml

@@ -0,0 +1,43 @@
+# This is a basic workflow to help you get started with Actions
+
+name: CI
+
+# Controls when the action will run.
+on:
+  # Triggers the workflow on push or pull request events but only for the master branch
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  build-and-test:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js environment
+        uses: actions/[email protected]
+        with:
+          node-version: 20.x
+          cache: yarn
+          cache-dependency-path: yarn.lock
+
+      - name: Install dependencies
+        run: yarn
+
+      - name: Log Versions
+        run: yarn tsc --version && yarn mocha --version
+
+      - name: Type Check
+        run: yarn tsc
+
+      - name: Unit tests
+        run: yarn test