{
  timezone = "America/New_York";
  locale = "en_US.UTF-8";
  user = {
    username = "someuser";
    fullname = "Some User";
    pkgs = [];
  };
  network = {
    hostname = "somehost";
    firewall = {
      tcp_ports = [];
      udp_ports = [];
    };
  };
  smtp = {
    tls = true;
    tls_starttls = false;
    port = 465;
    host = "example.com";
    to = "user2@exaple.com";
    from = "user1@example.com";
    user = "user1@example.com";
    password = "secret";
  };
}