{
  config,
  lib,
  pkgs,
  ...
}: let
  cfg = config.programs.olympus;
in {
  options.programs.olympus = {
    enable = lib.mkEnableOption "olympus";
    package = lib.mkOption {
      type = lib.types.package;
      default = pkgs.olympus;
      description = "The olympus package to install.";
    };
  };

  config = lib.mkIf cfg.enable (lib.mkMerge [
    {
      home.packages = [
        cfg.package
      ];
    }
    (
      lib.mkIf config.impermanence.enable {
        home.persistence."/persist/home" = {
          directories = [
            "${config.xdg.configHome}/olympus"
            "${config.xdg.dataHome}/olympus"
          ];
        };
      }
    )
  ]);
}