{...}: { programs.steam = { enable = true; gamescopeSession = { enable = true; args = [ "-W" "3840" "-H" "2160" "-f" "-e" "--xwayland-count" "2" "--hdr-enabled" "--hdr-itm-enabled" ]; }; }; programs.gamescope = { enable = true; capSysNice = false; }; hardware.steam-hardware.enable = true; }