anchor.diff:    installPhase = ''
       runHook preInstall
   
  -    mkdir -p $out/bin
  -    cp qtox $out/bin
  +    install -Dm755 qtox $out/bin/qtox
       wrapQtProgram $out/bin/qtox
   
       runHook postInstall
  
positive.code:   meta = with stdenv.lib; {
      description = "Qt Tox client";
      license = licenses.gpl3;
      maintainers = with maintainers; [ viric jgeerds akaWolf ];
      platforms = platforms.all;
    };
  }
  
negative.code: 
  stdenv.mkDerivation rec {
    name = "qtox-${version}";
    version = "1.10.0";
  
    src = fetchFromGitHub {
      owner  = "tux3";
      repo   = "qTox";
      rev    = "v${version}";
      sha256 = "00pbb788147qxpzj3kfp6x6a9w2h8rmz0sdwfzzdjh1qyb43d4q0";
    };
  
    buildInputs = [
  