diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 00000000..59c0e245
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,24 @@
+# https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-nodejs
+
+name: ci
+on:
+  push:
+  #  branches: [main]
+  pull_request:
+    branches: [main]
+jobs:
+  ci:
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version: [18.x, 20.x, 22.x, 23.x]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+      - run: npm install
+      - run: npm run build --if-present
+      - run: npm test
+      - run: node node_modules/tap/bin/tap.js --gc test/js/*-test.js