anchor.diff:  , libva
   , libvpx
   , mesa
  -, udev
  +, systemd_lib
   , wayland
   , xorg
   }:
  
positive.code:     libva
      libvpx
      mesa
      udev
      wayland
      xorg.libX11
      xorg.libXrandr
  
negative.code:       codyopel
      ];
      platforms = with platforms;
        x86_64-linux;
    };
  }
  