{ pkgs, modulesPath, ... }:
{
  imports = [
    (modulesPath + "/profiles/qemu-guest.nix")
    ./hardware.nix
    ./home-julien.nix
  ];

  luj = {
    mediaserver = {
      enable = true;
      tv.enable = true;
      music.enable = true;
    };
    homepage.enable = true;
    docs = {
      enable = true;
      nginx = {
        enable = true;
        subdomain = "docs";
      };
    };
    homer.enable = true;
    mailserver.enable = true;
  };

  # make the tailscale command usable to users
  environment.systemPackages = [ pkgs.tailscale ];

  # enable the tailscale service
  services.tailscale.enable = true;

  services.fail2ban.enable = true;

  networking.hostName = "lisa";
  networking.useDHCP = false;
  networking.interfaces.ens20.useDHCP = false;
  networking.interfaces.ens20.mtu = 1420;
  networking.interfaces.ens20.ipv4.addresses = [
    {
      address = "212.129.40.11";
      prefixLength = 32;
    }
  ];
  networking.interfaces.ens18.useDHCP = true;
  networking.defaultGateway.interface = "ens20";
  networking.defaultGateway.address = "212.129.40.11";
  networking.interfaces.ens19.useDHCP = false;
  networking.interfaces.ens19.ipv6.addresses = [
    {
      address = "2a01:e0a:5f9:9681:5880:c9ff:fe9f:3dfb";
      prefixLength = 120;
    }
  ];

  networking.hostId = "fbb334ae";
  services.zfs.autoSnapshot.enable = true;
  services.zfs.autoScrub.enable = true;

  networking.wireguard.interfaces = {
    wg0 = {
      ips = [ "fd85:27e8:fc9::6/128" ];
      listenPort = 51820;
      privateKeyFile = "/root/wg-private";

      peers = [
        {
          allowedIPs = [ "fd85:27e8:fc9::/48" ];
          publicKey = "ZO8j0AwssAERtyJQO+o11pWAFKzkxTI5hmqHsfEy5Bo=";
          endpoint = "core01.rz.ens.wtf:51820";
          persistentKeepalive = 25;
        }
      ];
    };
  };

  services.openssh.extraConfig = ''
    HostCertificate /etc/ssh/ssh_host_ed25519_key-cert.pub
    HostKey /etc/ssh/ssh_host_ed25519_key
    TrustedUserCAKeys /etc/ssh/ssh_user_key.pub
    MaxAuthTries 20
  '';

  networking.firewall.allowedTCPPorts = [ 51821 ];
  networking.firewall.allowedUDPPorts = [ 51821 ];

  system.stateVersion = "21.11";
}