anchor.diff:  
     installPhase = ''
       runHook preInstall
  -    install -D --mode 755 --target-directory $out/bin/ x16emu
  -    install -D --mode 444 --target-directory $out/share/doc/${pname} README.md
  +
  +    install -Dm 755 -t $out/bin/ x16emu
  +    install -Dm 444 -t $out/share/doc/${pname} README.md
  +
       runHook postInstall
     '';
   
  
positive.code:     description = "The official emulator of CommanderX16 8-bit computer";
      license = licenses.bsd2;
      maintainers = with maintainers; [ AndersonTorres ];
      platforms = SDL2.meta.platforms;
    };
  
    passthru = {
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "x16-emulator";
    version = "40";
  
    src = fetchFromGitHub {
      owner = "commanderx16";
      repo = pname;
      rev = "r${version}";
      hash = "sha256-7ZzVd2NJCFNAFrS2cj6bxcq/AzO5VakoFX9o1Ac9egg=";
    };
  
    dontConfigure = true;
  