diff --git a/.github/workflows/_ci.yml b/.github/workflows/_ci.yml
new file mode 100644
index 0000000..48d1526
--- /dev/null
+++ b/.github/workflows/_ci.yml
@@ -0,0 +1,24 @@
+name: CI
+
+on:
+  pull_request_target:
+    branches: [main]
+
+jobs:
+  main:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version-file: .node-version
+
+      - run: npm ci
+      - run: npm run format:check
+      - run: npm run lint
+      - run: npm run test
+      - run: npm run build
+
+      - name: Check that dist/ is correctly generated
+        run: git diff --quiet HEAD main -- dist