CI: add github actions setup

.github/workflows/ci.yml

@@ -0,0 +1,33 @@
+name: Build on CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  deploy:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-13]
+    name: Deploy
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+      - name: Install esy
+        run: npm install -g esy
+      - uses: esy/github-action@6a5070d392db3e8c776724674737cab37c07263d
+        with:
+          source-cache-key: 20240511-2
+          cache-key: ${{ hashFiles('esy.lock/index.json') }}-20240511-1
+      - name: Export esy cache
+        run: esy export-dependencies
+      - uses: actions/[email protected]
+        with:
+          name: dependencies-cache-${{ matrix.os }}
+          path: _export
+