try build workflow

.github/workflows/build.yml

@@ -0,0 +1,15 @@
+name: Strudel Build
+
+on: [workflow_dispatch]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 16
+          cache: "npm"
+      - run: npm install
+      - run: npm run build