nix-config/lib/yggdrasil.nix

{ config, ... }: {

  imports = [ (<yggdrasil-package-nix> + "/nixos-module.nix") ];

  networking.firewall.extraCommands =
    "ip6tables -A INPUT -s fe80::/10 -j ACCEPT";

  services.yggdrasil = {
    enable = true;
    NodeInfo = {
      name = config.networking.hostName + ".c3d2";
      location = "Dresden";
    };
  };
}