diff --git a/.forgejo/workflows/test.yml b/.forgejo/workflows/test.yml
new file mode 100644
index 0000000..47effe4
--- /dev/null
+++ b/.forgejo/workflows/test.yml
@@ -0,0 +1,11 @@
+on: [pull_request]
+jobs:
+  demo:
+    runs-on: docker
+    steps:
+      - name: runner arch
+        run: |
+          echo "uname: $(uname -p)"
+          echo "runner.arch: ${{ runner.arch }}"
+          echo "runner.arch: RUNNER_ARCH"
+      - uses: sigstore/cosign-installer@11086d25041f77fe8fe7b9ea4e48e3b9192b8f19 # v3.1.2