{
  pkgs,
  lib,
  config,
  ...
}:
let
  enabled = config.mod.transmission.enable;
in
{
  options = {
    mod.transmission = {
      enable = lib.mkEnableOption "enable transmission module";
    };
  };

  config = lib.mkIf enabled {
    services = {
      transmission = {
        enable = true;
        package = pkgs.transmission_4;

        openFirewall = true;

        user = "storage";
        group = "storage";

        home = "/mnt/media/public/.ts-home";
        downloadDirPermissions = "775";

        settings = {
          incomplete-dir-enabled = false;
          download-dir = "/mnt/media/public/downloads";

          rpc-bind-address = "0.0.0.0";

          # Required to have empty user/pass to satisfy transmissionA
          # https://github.com/transmission/transmission/discussions/1941#discussioncomment-1472352
          rpc-whitelist-enabled = false;
          rpc-authentication-required = true;
          rpc-username = "";
          rpc-password = "";

        };
      };
    };
  };
}