{
  lib,
  config,
  ...
}: let
  radarr_data_directory = "/var/lib/radarr/.config/Radarr";
in {
  options.services.radarr = {
    impermanence.enable = lib.mkOption {
      type = lib.types.bool;
      default = config.services.radarr.enable && config.host.impermanence.enable;
    };
  };

  config = lib.mkIf config.services.radarr.impermanence.enable {
    assertions = [
      {
        assertion = config.services.radarr.dataDir == radarr_data_directory;
        message = "radarr data directory does not match persistence";
      }
    ];

    environment.persistence."/persist/system/root" = {
      directories = [
        {
          directory = radarr_data_directory;
          user = "radarr";
          group = "radarr";
        }
      ];
    };
  };
}