{
  config,
  lib,
  ...
}:
let
  port = 51820;
  interface = config.my.interfaces.${config.networking.hostName};
in
{
  options.my.services.wireguard.enable = lib.mkEnableOption "WireGuard VPN configuration";
  config = lib.mkIf (config.my.services.wireguard.enable && config.my.secureHost) {
    sops.secrets."wireguard/private".sopsFile = ../../secrets/wireguard.yaml;
    networking = {
      firewall.allowedUDPPorts = [ port ];
      nat = {
        enable = true;
        externalInterface = interface;
        internalInterfaces = [ "wg0" ];
      };
      wireguard.interfaces.wg0 = {
        ips = [
          "${config.my.ips.wg-vps}/24"
          "10.8.0.1/24"
          "10.9.0.1/24"
        ];
        listenPort = port;
        postSetup = "";
        postShutdown = "";
        privateKeyFile = config.sops.secrets."wireguard/private".path;
        peers = [
          {
            publicKey = "OUiqluRaS4hmGvLJ3csQrnIM3Zzet50gsqtTABaUkH4=";
            allowedIPs = [ "${config.my.ips.wg-server}/32" ];
          }
          {
            publicKey = "rFgT6TXzRazK6GMazMNGjtOvzAAPST0LvCfN7QXsLho=";
            allowedIPs = [ "${config.my.ips.wg-friend1}/32" ];
          }
          {
            publicKey = "R1CTx5+CXivMI6ZEmRYsyFUFILhe6Qnub0iEIRvvrEY=";
            allowedIPs = [ "${config.my.ips.wg-friend2}/32" ];
          }
          {
            publicKey = "ecPNSacD6yVwpnLBs171z0xkw9M1DXKh/Kn70cIBcwA=";
            allowedIPs = [ "${config.my.ips.wg-friend3}/32" ];
          }
          {
            publicKey = "yg+2miZCrx89znFaUlU/le/7UIPgEAMY74fZfEwz8g4=";
            allowedIPs = [ "${config.my.ips.wg-friend4}/32" ];
          }
        ];
      };
    };
  };
}