let
  forwards = [{
    port = 80;
    domain = "vikunja.nudelerde.de";
  }
  {
    port = 443;
    domain = "vikunja.nudelerde.de";
    tls = true;
  }
  {
    port = 80;
    domain = "nudelerde.de";
  }
  {
    port = 443;
    domain = "nudelerde.de";
    tls = true;
  }
  {
    port = 8448;
    domain = "nudelerde.de";
    tls = true;
  }
  ];
  entry = forward:
    {
      type = "forwarding";
      listenPort = forward.port;
      domain = forward.domain;
      content = {
        port = 10000 + forward.port;
        tls = forward.tls or false;
      };
    };

in
  map entry forwards