*temp*.txt

        slop = pkgs.slop.overrideDerivation (attrs: rec {
            version = "4.2.18";
            src = pkgs.fetchgit {
                url = "https://github.com/naelstrof/slop";
                rev = "refs/tags/v${version}";
                sha256 = "0668k74a7jpiqmgy0yp99pcywr5k318j6qpvwjz8jhn266wpq1ki";
            };

            buildInputs = [ pkgs.cmake pkgs.xlibs.libX11 pkgs.xlibs.libXext pkgs.mesa pkgs.pkgconfig pkgs.xlibs.libXrender pkgs.glew pkgs.xlibs.libXrandr pkgs.glm ];
        });