{ ... }:

{
  # Имя хоста
  networking.hostName = "nixos-vm";

  # Включение NetworkManager
  networking.networkmanager.enable = true;

  # Конфигурация фаервола
  networking.firewall = {
    enable = true;
    allowedTCPPorts = [ 22 ];  # SSH
    # allowedUDPPorts = [ ... ];
  };
}