flake.nix

{
  inputs.nixpkgs.url = "nixpkgs";
  description = "qemu rust game of life";
  outputs = { self, nixpkgs, ... }:
    let
      system = "x86_64-linux";
      pkgs = import nixpkgs { inherit system; };
      thing = with pkgs;
        stdenv.mkDerivation rec {
          name = "gameoflife";
          src = fetchFromGitHub {
            owner = "glitzflitz";
            repo = "gameoflife";
            rev = "ac17b5987f845f242bc7c9f8f4aea38e8a98f92f";
            hash = "sha256-LVYlVwwAWPuKpNcYDmyStlctS/OUa6wIhPXrPzBlp6A=";
          };
          cargoHash = "sha256-yBoaLqynvYC9ebC0zjd2FmSSd53xzn4ralihtCFubAw=";
          nativeBuildInputs = [ makeWrapper qemu ];
          PATH = lib.makeBinPath nativeBuildInputs;

          # postPatch = ''
          # substituteInPlace ./run.sh \
          # --replace \
          # 'file=gameoflife.bin' \
          # 'file=$out/share/gameoflife.bin'
          # '';

          postInstall = ''
            substituteInPlace $out/bin/.run.sh-wrapped \
            --replace \
            'file=gameoflife.bin' \
            'file=$out/share/gameoflife.bin'
          '';

          installPhase = ''
            mkdir -p $out/bin
            mkdir -p $out/share
            mv ./gameoflife.bin $out/share
            mv ./README.md $out/bin
            mv ./run.sh $out/bin
            wrapProgram $out/bin/run.sh \
              --prefix PATH : ${lib.makeBinPath nativeBuildInputs}
          '';
        };
    in {
      apps.${system}.default = {
        program = "${thing}/bin/run.sh";
        type = "app";
      };
      packages.${system}.default = thing;
    };
}