I like Github Actions and it is better than what I used before (Travis) and I think it solves an important problem. For OSS projects it's a super valuable free resource.

For me what worked wonders was adopting Nix. Make sure you have a reproducible dev environment and wrap your commands in `nix-shell --run`, or even better `nix develop --command`, or even better your most of your CI tasks derivations that run with `nix build` or `nix flake check`.

Not only does this make it super easy to work with Github Actions, also with your colleagues or other contributors.