Forgot to use branches, remember kids: use protection

I'd like less generations please side note:
it's a bit weird that you can't specify how many generations you'd like
to keep, like what if I want 3 generations to stay available?

shell.nix

@@ -73,7 +73,7 @@ pkgs.mkShell {
     -commit
 
     # push flake config to a remote server(s)
-    nix run github:serokell/deploy-rs . # this needs to be the same version that the flake is using
+    nix run github:serokell/deploy-rs .#$1 # this needs to be the same version that the flake is using
     '')
   ];