modules/nixos/dns/default.nix

{ ... }:
{
  services = {
    avahi = {
      enable = true;
      nssmdns4 = true;
      nssmdns6 = true;
      ipv4 = true;
      ipv6 = true;
      publish = {
        enable = true;
        addresses = true;
        workstation = true;
        userServices = true;
      };
    };
  };
}