{ ... }: {


    perSystem = { system, pkgs, self', ... }: {
        packages.ClientModule = pkgs.stdenvNoCC.mkDerivation {

            name = "ClientModule";

            src = ./.;

            nativeBuildInputs = with pkgs; [
                clang
            ];

            buildInputs = with pkgs; [
                gamenetworkingsockets
            ];

            buildPhase = ''
                clang++ \
                modules/ClientModule/*.cpp \
                -fpic -shared \
                -I include \
                -I ${pkgs.gamenetworkingsockets}/include/GameNetworkingSockets \
                -lGameNetworkingSockets \
                -DCLIENTMODULE_DYNAMIC \
                -Wall \
                -o $name 
                ''; 

            installPhase = ''
                mkdir -p $out/bin
                cp $name $out/bin
            '';

        };
    };


}