anchor.diff:  , vulkan-tools
   , wrapQtAppsHook
   }:
  -
  -let
  +stdenv.mkDerivation rec {
     pname = "qmplay2";
  -  version = "20.12.16";
  -in stdenv.mkDerivation {
  -  inherit pname version;
  +  version = "21.06.07";
   
     src = fetchFromGitHub {
       owner = "zaps166";
       repo = "QMPlay2";
       rev = version;
  -    sha256 = "sha256-+XXlQI9MyENioYmzqbbZYQ6kaMATBjPrPaErR2Vqhus=";
  +    sha256 = "sha256-NV9uglYnqebXhMx8uL0DhGe9l5TBVjlSIaB4IWC8YAc=";
       fetchSubmodules = true;
     };
   
  -  nativeBuildInputs = [ cmake pkg-config wrapQtAppsHook ];
  +  nativeBuildInputs = [
  +    cmake
  +    pkg-config
  +    wrapQtAppsHook
  +  ];
     buildInputs = [
       alsa-lib
       ffmpeg
  +    libXv
       libass
       libcddb
       libcdio
  
positive.code:     libpulseaudio
      libsidplayfp
      libva
      libXv
      qtbase
      qttools
      taglib
  
negative.code: { lib
  , stdenv
  , fetchFromGitHub
  , pkg-config
  , cmake
  