let common =
  {
    boot.loader.grub.devices = [ "/dev/sda" ];

    i18n = {
      consoleFont = "Lat2-Terminus16";
      consoleKeyMap = "fr-bepo";
      defaultLocale = "en_US.UTF-8";
    };

    services = {
      openssh = {
        enable = true;
        permitRootLogin = "yes";
      };
    };
    networking.firewall.allowedTCPPorts = [ 22 ];

    users.mutableUsers = false;
    security.initialRootPassword = "$6$hoiRRInkFqRV$WmQzqHPTRqaptmXPqNKfIBmiyyckmHKksVJZd94WQ0HHNx5wnGWL76H8.pN.gQ.9Mf.JaVL6oSAw4MjMoTcSF1";

  };
in
  {
    network.description = "DJL machines";

    # TF2 server
    rogerRabbit = { config, pkgs, lib, ... }:
    lib.recursiveUpdate common {
      imports = [ ./rogerRabbit-hw.nix ];

      environment.systemPackages = with pkgs; [
        steam-run
      ];
      nixpkgs.config.allowUnfree = true;
    };

    # Urban Terror server
    jessicaRabbit = { config, pkgs, lib, ... }:
    lib.recursiveUpdate common {
      imports = [ ./jessicaRabbit-hw.nix ];
    };

    # file server
    bongo = { config, pkgs, lib, ... }:
    lib.recursiveUpdate common {
      imports = [ ./bongo-hw.nix ];
    };

    # DHCP/DNS server
    eddieValiant = { config, pkgs, lib, ... }:
    lib.recursiveUpdate common {
      imports = [ ./eddieValiant-hw.nix ];

      services = {
        dhcpd4 = {
          enable = true;
          interfaces = [ "enp2s0" ];
          machines = [
            { ethernetAddress = "28:80:23:00:2f:45";
              hostName        = "era";
              ipAddress       = "10.42.0.254"; }
            { ethernetAddress = "00:23:ae:82:82:7a";
              hostName        = "rogerRabbit";
              ipAddress       = "10.42.0.2"; }
            { ethernetAddress = "00:23:ae:88:fb:b9";
              hostName        = "jessicaRabbit";
              ipAddress       = "10.42.0.3"; }
            { ethernetAddress = "00:21:9b:2f:1f:99";
              hostName        = "bongo";
              ipAddress       = "10.42.0.4"; }
          ];
          extraConfig = ''
            subnet 10.42.0.0 netmask 255.255.0.0 {
              authoritative;
              range 10.42.0.50 10.42.0.200;
              default-lease-time 3600;
              max-lease-time 3600;
              option subnet-mask 255.255.0.0;
              option broadcast-address 10.42.255.255;
              option routers 10.42.0.0;
              #option domain-name-servers 10.42.0.1;
              #option domain-name "djl.local";
            }
          '';
        };
      };
      networking = {
        dhcpcd.enable = false;
        interfaces."enp2s0".ipAddress = "10.42.0.1";
        interfaces."enp2s0".prefixLength = 16;
      };
    };
  }