{
  config,
  lib,
  pkgs,
  sources,
  ...
}:
let
  host = "catvayor.sh";
in
{
  imports = [
    "${sources.nixos-mailserver}"
    ./hardware-configuration.nix
    ./disks.nix
    ./modo.nix
  ];

  boot.loader = {
    systemd-boot.enable = true;
    efi.canTouchEfiVariables = true;
  };

  networking = {
    useNetworkd = lib.mkForce false;
    interfaces."enp1s0" = {
      useDHCP = false;
      ipv4.addresses = [
        {
          address = "192.168.122.3";
          prefixLength = 24;
        }
      ];
      ipv6.addresses = [
        {
          address = "fe80::3";
          prefixLength = 64;
        }
      ];
    };
    defaultGateway = "192.168.122.1";
    defaultGateway6 = {
      address = "fe80::1";
      interface = "enp1s0";
    };
    nameservers = [
      "192.168.122.1"
      "fe80::1%enp1s0"
    ];
  };

  services = {
    openssh.enable = true;
    netbird.enable = true;
  };

  networking.firewall.enable = false;

  security.acme = {
    acceptTerms = true;
    defaults.email = "root@katvayor.net";
  };
  services.nginx = {
    enable = true;
    virtualHosts."catvayor.sh".enableACME = true;
    virtualHosts."betamail.katvayor.net" = {
      enableACME = true;
      addSSL = true;
      locations."/" = {
        recommendedProxySettings = true;
        proxyPass = "http://localhost:8000/";
      };
    };
  };

  mailserver = {
    enable = true;
    fqdn = "betamail.katvayor.net";
    domains = [ host ];

    loginAccounts = {
      "root@${host}" = {
        catchAll = [ host ];
        aliases = builtins.genList (id: "user${toString id}@${host}") 10 ++ [ "moderators@${host}" "daemon@${host}" ];
        hashedPassword = "$2b$05$FoCVDECXYG0KXPigPuIZtuNFiviwSg8RuXx0FbnzC7ZRp.Mz8VWOe";
      };
    };

    certificateScheme = "acme";
  };

  system.stateVersion = "23.11";
}