{
  config,
  lib,
  ...
}:
let
  cfg = config.modules.services.navidrome;
in
{
  options.modules.services.navidrome = {
    enable = lib.mkEnableOption "Navidrome";

    dataDir = lib.mkOption {
      type = lib.types.str;
      default = "/var/lib/navidrome";
      readOnly = true;
      description = "Guest path where Navidrome stores its data folder.";
    };

    libraryDir = lib.mkOption {
      type = lib.types.str;
      default = "/music";
      readOnly = true;
      description = "Guest path where Navidrome reads its library folder.";
    };
  };

  config = lib.mkMerge [
    {
      registry."stable-uid".${config.networking.hostName}.navidrome = 20004;
    }

    (lib.mkIf cfg.enable {
      users.users.navidrome = {
        isSystemUser = true;
        uid = config.registry."stable-uid".${config.networking.hostName}.navidrome;
        group = "storage";
        home = cfg.dataDir;
      };

      services.navidrome = {
        enable = true;
        user = "navidrome";
        group = "storage";
        openFirewall = true;
        settings = {
          Address = "0.0.0.0";
          Port = 4533;
          DataFolder = cfg.dataDir;
          MusicFolder = cfg.libraryDir;
          EnableSharing = true;
        };
      };
    })
  ];
}