{ config, lib, pkgs, ... }: { config = { programs.steam = { enable = true; remotePlay.openFirewall = true; dedicatedServer.openFirewall = true; localNetworkGameTransfers.openFirewall = true; # Ensure gamescope is inside the steam "fhs" package = pkgs.steam.override { extraLibraries = pkgs: [ pkgs.xorg.libxcb ]; extraPkgs = pkgs: with pkgs; [ attr xorg.libXcursor xorg.libXi xorg.libXinerama xorg.libXScrnSaver libpng libpulseaudio libvorbis stdenv.cc.cc.lib libkrb5 keyutils mangohud gamemode lsof (gamescope.overrideAttrs { enableWsi = true; NIX_CFLAGS_COMPILE = [ "-fno-fast-math" ]; }) ]; }; }; }; }