anchor.diff:      exec = "$out/bin/xonotic";
       comment = meta.description;
       desktopName = "Xonotic";
  -    categories = "Game;";
  +    categories = "Game;Shooter;";
       icon = "xonotic";
       startupNotify = "false";
     };
  
positive.code:     enableParallelBuilding = true;
  
      installPhase = ''
        install -Dm644 ../../misc/logos/icons_png/xonotic_128.png $out/share/pixmaps/xonotic.png
      '' + lib.optionalString withDedicated ''
        install -Dm755 darkplaces-dedicated "$out/bin/xonotic-dedicated"
      '' + lib.optionalString withGLX ''
  
negative.code:     ln -sf $out/bin/xonotic-sdl $out/bin/xonotic
    '' + lib.optionalString (withSDL || withGLX) ''
      mkdir -p $out/share
      ln -s ${xonotic-unwrapped}/share/icons $out/share/icons
      ${desktopItem.buildCommand}
    '' + ''
      for binary in $out/bin/xonotic-*; do
  