{
  config,
  pkgs,
  lib,
  ...
}: let
  cfg = config.alqueva.mpd;
in {
  options.alqueva.mpd = {
    enable = lib.mkEnableOption "mpd";
    ncmpcpp = lib.mkOption {
      type = lib.types.bool;
      default = false;
      description = "Enable ncmpcpp alongside mpd.";
    };
  };

  config = lib.mkIf cfg.enable {
    services.mpd.enable = true;
    environment.systemPackages =
      [pkgs.mpd]
      ++ lib.optional cfg.ncmpcpp pkgs.ncmpcpp;
  };
}