#+title: MangoHud
#+setupfile: ../../headers

* MangoHud
[[https://github.com/flightlessmango/MangoHud][MangoHud]] is the performance overlay I use to keep an eye on FPS, frame
time and GPU/CPU usage while gaming. Here’s the =homeManager.mangohud=
module.
#+begin_src nix :tangle yes
{
  flake.modules.homeManager.mangohud = {
    lib,
    config,
    ...
  }:
    with lib; let
      cfg = config.home.games.mangohud;
    in {
      <<options>>
      <<config>>
    };
}
#+end_src

** Declaring the Option
#+name: options
#+begin_src nix
options.home.games.mangohud.enable = mkEnableOption "Enable MangoHud performance overlay";
#+end_src

** Enabling It Session-Wide
=enableSessionWide= turns MangoHud on for my whole session. It
auto-launches for any game or app that supports it.
#+name: config
#+begin_src nix
config.programs.mangohud = mkIf cfg.enable {
  enable = true;
  enableSessionWide = true;
};
#+end_src