config.nix/modules/desktop/audio.nix

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

{
  options = {
    desktop = {
      audio.enable = lib.mkEnableOption "enable audio";
    };
  };

  config = lib.mkIf config.desktop.audio.enable {
    home.packages = with pkgs; [
      pavucontrol
    ];
  };
}