{
  inputs.mesa-src = {
    url = "git+https://gitlab.freedesktop.org/mesa/mesa?ref=main";
    flake = false;
  };

  outputs = { self, nixpkgs, mesa-src }: {
    mesa-custom = nixpkgs.legacyPackages.x86_64-linux.mesa.overrideAttrs (old: {
      src = mesa-src;
      patches = [ ./hd4000-custom.patch ];
    });
  };
}