To use this, all you need is the package manager Nix:

curl -L https://nixos.org/nix/install | sh

then run with ./ProjectUraniumAutoBuilder.hs <path/to/pokemon-uranium> <path/to/godot-project>

Optionally compile with nix build -f shell.nix and run the executable result/bin/ProjectUraniumAutoBuilderHs instead. This way it'll execute faster (if for some reason you plan to run it more than once).