diff --git a/.github/workflows/github-os-sample.yml b/.github/workflows/github-os-sample.yml
new file mode 100644
index 0000000..f1d090a
--- /dev/null
+++ b/.github/workflows/github-os-sample.yml
@@ -0,0 +1,7 @@
+name: github-os-sample
+on: workflow_dispatch
+jobs:
+  main:
+    runs-on: ${{ github.event.event_type }}
+    steps:
+      - run: echo 'hello world!'