{ config, lib, pkgs, ... }:

with lib;
let
  hostname = config.instance.hostname;
  host = config.fudo.hosts.${hostname};
  domain-name = config.instance.local-domain;
  domain = config.fudo.domains.${domain-name};

  gateway = domain.wireguard.gateway;

  is-wireguard-client =
    gateway != null && gateway != hostname &&
    host.wireguard.private-key-file != null;

in {
  config = mkIf is-wireguard-client (let

  in {
    fudo.wireguard-client = {
      enable = true;
      server = {

      };
    };
  });
}