self: super: {

  nixGL =
    let
      src = (super.fetchFromGitHub
        {
          owner = "guibou";
          repo = "nixGL";
          rev = "9f08b60ca4ba5d32fe873900df783597fcbde14f";
          sha256 = "1d5hllj0524dfk1cfmpil4l0b1pk75hs1i73aq6midmpxxg1hfcm";
        });
    in
    import src { pkgs = super; };
}