nixos/hosts/gamescope.nix

{ config, lib, pkgs, ... }:
let
  sessionCommand = ''
    gamescope\
      --output-width 3840 --output-height 2160 --framerate-limit 60\
      --nested-width 1920 --nested-height 1080 --nested-refresh 60\
      --scaler auto --filter fsr --fsr-sharpness 10\
      --hide-cursor-delay 5 --steam -- steam -gamepadui
  '';
in {
  imports = [ ./desktop.nix ];
  services = {
    blueman.enable = true;
    greetd.settings = {
      default_session.command = sessionCommand;
      initial_session.command = sessionCommand;
    };
  };
  programs = {
    xwayland.enable = true;
    gamescope = {
      enable = true;
      capSysNice = true;
    };
    steam = {
      enable = true;
      remotePlay.openFirewall = true;
      gamescopeSession.enable = true;
    };
  };
}