While flakes have their own "checks" thing, what I do is just have a app definition in flake with the required dependencies.

https://github.com/Cloudef/zig-aio/blob/master/flake.nix#L25...

https://github.com/Cloudef/zig-budoux/blob/master/flake.nix#...

The actual GA workflow file is pretty simple: https://github.com/Cloudef/zig-aio/blob/master/.github/workf...