anchor.diff:  { mkDerivation
   , cmake
   , fetchFromGitLab
  +, nix-update-script
   , gst_all_1
   , lib
   , libpulseaudio
  
positive.code: , qttools
  , taglib
  , zlib
  }:
  
  mkDerivation rec {
    pname = "sayonara-player";
    version = "1.6.0-beta6";
  
    src = fetchFromGitLab {
      owner = "luciocarreras";
      repo = "sayonara-player";
      rev = version;
      sha256 = "sha256-SbJS0DQvbW++CNXbuDHQxFlLRb1kTtDdIdHOqu0YxeQ=";
    };
  
    nativeBuildInputs = [ cmake ninja pkg-config qttools ];
  
negative.code:     qtbase
      taglib
      zlib
      py
    ]
    ++ (with gst_all_1; [
      gstreamer
  