{
  pkgs,
  nodes,
  ...
}:
{
  deployment.targetHost = "manah.kat";

  imports = [
    ./hardware-configuration.nix
  ];

  boot = {
    loader = {
      systemd-boot.enable = true;
      efi.canTouchEfiVariables = true;
    };
    kernel.sysctl."net.ipv4.ip_forward" = true;
    kernelModules = [
      "kvm-intel"
      "kvm-amd"
    ];
  };

  kat = {
    fqdn = "manah.katvayor.net";
    proxies = {
      ip = "10.42.0.1";
      open-tcp = [
        9000
        9500
      ];
      redirects = [
        "kat-orchid"
        "kat-son"
        "kat-www"
        "kat-virt"
        "kat-mail-test"
      ];
    };
    wireguardPubKey = "2rMQV5fyBhl7t/0j70iPOfEr/lAWQfLXQKMwtzaXxnM=";
  };

  systemd.network = {
    enable = true;
    networks = {
      "50-wg0" = {
        name = "wg0";
        address = [ "10.42.0.1/16" ];
      };
    };
    netdevs = {
      "50-wg0" = {
        netdevConfig = {
          Name = "wg0";
          Kind = "wireguard";
        };
        wireguardConfig = {
          PrivateKeyFile = "/etc/wg/private.key";
        };

        wireguardPeers = [
          {
            Endpoint = "watcher.katvayor.net:1194";
            AllowedIPs = [
              "10.42.0.2/32"
            ];
            PersistentKeepalive = 20;
            PublicKey = nodes.kat-watcher.config.kat.wireguardPubKey;
          }
        ];
      };
    };
  };

  environment.systemPackages = with pkgs; [
    dnsmasq
    tcpdump
  ];

  programs.virt-manager.enable = true;
  virtualisation.libvirtd.enable = true;

  security.acme = {
    acceptTerms = true;
    defaults.email = "root@katvayor.net";
  };

  services = {
    openssh.enable = true;
    weechat = {
      enable = true;
      binary = "${pkgs.weechat}/bin/weechat-headless";
    };
  };

  networking.firewall = {
    allowedTCPPorts = [
      9000
      9500
      53
    ];
    allowedUDPPorts = [ 67 ];
  };
  system.stateVersion = "23.11";
}