diff --git a/.forgejo/workflows/nix-check.yaml b/.forgejo/workflows/nix-check.yaml
index 4c4f513..45631b2 100644
--- a/.forgejo/workflows/nix-check.yaml
+++ b/.forgejo/workflows/nix-check.yaml
@@ -4,6 +4,12 @@ jobs:
   print-content:
     runs-on: nix-runner
     steps:
+      - name: registry
+        run: nix registry list
+
+      - name: registry
+        run: nix shell /nix/store/cy6cvjfw0729jx30b2khdbjak8wbbcs1-source#p7zip --command 7z --help
+
       - name: Test Nix Caching
         run: nix flake metadata nixpkgs