diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 95c0a6e..8a9f625 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -26,3 +26,9 @@ jobs:
 
     - name: show flake metadata
       run: nix flake metadata
+
+    - name: launcher version
+      run: |
+        ls ./result
+        ls -al ./result
+        ./result/bin/launcher version