nixos/system/gamescope.nix

{ config, lib, pkgs, user, ... }:

{
  imports = [ ./desktop.nix ./steam.nix ];
  services.greetd.settings = rec {
    default_session.command = ''
      gamescope\
        --nested-refresh 60\
        --scaler auto --filter fsr --fsr-sharpness 10\
        --hide-cursor-delay 5 --steam -- steam -gamepadui
    '';
    initial_session = {
      inherit user;
      inherit (default_session) command;
    };
  };
}