{
  config,
  lib,
  ...
}:
with lib; let
  cfg = config.nixfiles.modules.radarr;
in {
  options.nixfiles.modules.radarr = {
    enable = mkEnableOption "Radarr";

    domain = mkOption {
      description = "Domain name sans protocol scheme.";
      type = with types; str;
      default = "radarr.${config.networking.domain}";
    };
  };

  config = mkIf cfg.enable {
    nixfiles.modules.nginx = {
      enable = true;
      upstreams.radarr.servers."127.0.0.1:7878" = {};
      virtualHosts.${cfg.domain} = {
        locations."/".proxyPass = "http://radarr";
        extraConfig = nginxInternalOnly;
      };
    };

    services.radarr = {
      enable = true;
      user = "rtorrent";
      group = "rtorrent";
    };
  };
}