diff --git a/.github/workflows/branch.yaml b/.github/workflows/branch.yaml
new file mode 100644
index 0000000..2b73ded
--- /dev/null
+++ b/.github/workflows/branch.yaml
@@ -0,0 +1,22 @@
+name: branch
+
+on: pull_request
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: install node
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+      - name: install pug & build
+        run: |
+          npm install pug-cli -g
+          pug --pretty -o site/bipsi --basedir src -- src/index.pug
+      - name: upload page
+        uses: actions/upload-artifact@v4
+        with:
+          name: bipsi.html
+          path: ./site/bipsi/index.html