Create build.yml

.github/workflows/build.yml

@@ -0,0 +1,19 @@
+name: Build
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+jobs:
+  build-and-deploy:
+    concurrency: ci-${{ github.ref }} # Recommended if you intend to make multiple deployments in quick succession.
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout 🛎️
+        uses: actions/checkout@v3
+
+      - name: Install and Build 🔧 # use the lockfile for reproducibility, run typechecking, then output to build folder
+        run: |
+          yarn install --frozen-lockfile
+          yarn run check
+          yarn build