anchor.diff:  , lib
   , fetchFromGitHub
   , cc65
  +, python3
   }:
   
   stdenv.mkDerivation rec {
     pname = "x16-rom";
  -  version = "38";
  +  version = "40";
   
     src = fetchFromGitHub {
       owner = "commanderx16";
       repo = pname;
       rev = "r${version}";
  -    sha256 = "xaqF0ppB7I7ST8Uh3jPbC14uRAb/WH21tHlNeTvYpoI=";
  +    hash = "sha256-5oqttuTJiJOUENncOJipAar22OsI1uG3G69m+eYoSh0=";
     };
   
  -  nativeBuildInputs = [ cc65 ];
  +  nativeBuildInputs = [
  +    cc65
  +    python3
  +  ];
   
     postPatch = ''
       patchShebangs scripts/
  
positive.code:     description = "ROM file for CommanderX16 8-bit computer";
      license = licenses.bsd2;
      maintainers = with maintainers; [ AndersonTorres ];
      platforms = cc65.meta.platforms;
    };
  
    passthru = {
  
negative.code: 
    installPhase = ''
      runHook preInstall
  
      install -Dm 444 -t $out/share/${pname} build/x16/rom.bin
      install -Dm 444 -t $out/share/doc/${pname} README.md
  
      runHook postInstall
    '';
  
  