{ pkgs, ... }:

{
  programs.gamemode.enable = true;
  users.users.djai.extraGroups = [ "gamemode" ];

  # capSysNice would make glibc strip LD_PRELOAD from gamescope, breaking steam's overlay.
  # '--rt' works through the rtprio limit below instead (see the gamescope patch on tuxcomp).
  programs.gamescope = {
    enable = true;
    capSysNice = false;
  };

  security.pam.loginLimits = [
    {
      domain = "@users";
      type = "-";
      item = "rtprio";
      value = "99";
    }
    {
      domain = "@users";
      type = "-";
      item = "nice";
      value = "-19";
    }
  ];

  # Wine 10+ uses the kernel's ntsync when /dev/ntsync exists; far cheaper
  # than esync/fsync under thread contention.
  boot.kernelModules = [ "ntsync" ];

  users.users.djai.packages = with pkgs; [
    desmume
    eden
    libretro.citra
    prismlauncher
    steam
    winetricks
  ];

  services.flatpak.packages = [
    "org.vinegarhq.Sober"
  ];

  # TODO: switch to home manager
  # home-manager.users.djai =
  #   { config, ... }:
  #   {
  #     home.packages = with pkgs; [ ];
  #
  #     xdg.desktopEntries.sims4 = {
  #       name = "The Sims 4";
  #       exec = ''xdg-open "PATHTOEXECHERE"'';
  #       icon = "${config.home.homeDirectory}/.icons/";
  #       categories = [ "Game" ];
  #       terminal = false;
  #     };
  #
  #     # gamescope does fullscreen and scaling; setting content=game sets direct scnaout
  #     # requires this in hyprland config: render.direct_scanout = 2;
  #     wayland.windowManager.hyprland.settings.window_rule = [
  #       {
  #         match.class = "gamescope";
  #         fullscreen = true;
  #         content = "game";
  #         opaque = true;
  #         immediate = true;
  #       }
  #     ];
  #   };
}