_guestName: guestCfg:
{ lib, ... }:
let
  inherit (lib)
    mkForce
    nameValuePair
    listToAttrs
    flip
    ;
in
{
  node.name = guestCfg.nodeName;
  node.type = guestCfg.backend;

  nix = {
    settings.auto-optimise-store = mkForce false;
    optimise.automatic = mkForce false;
    gc.automatic = mkForce false;
  };
  documentation.enable = mkForce false;

  systemd.network.networks = listToAttrs (
    flip map guestCfg.networking.links (
      name:
      nameValuePair "10-${name}" {
        matchConfig.Name = name;
        DHCP = "yes";
        # XXX: Do we really want this?
        dhcpV4Config.UseDNS = false;
        dhcpV6Config.UseDNS = false;
        ipv6AcceptRAConfig.UseDNS = false;
        networkConfig = {
          IPv6PrivacyExtensions = "yes";
          MulticastDNS = true;
          IPv6AcceptRA = true;
        };
        linkConfig.RequiredForOnline = "routable";
      }
    )
  );
}