nixos-config/modules/wireguard/home.nix

{ lib, config, ... }:
let
  cfg = config.sbruder.wireguard.home;
in
{
  options = {
    sbruder.wireguard.home = {
      enable = lib.mkEnableOption "WireGuard tunnel wg-home";
      address = lib.mkOption {
        type = lib.types.str;
        description = "IP(v4) address of the host";
        example = "10.80.0.1";
      };
    };
  };

  config = lib.mkIf cfg.enable {
    krops.secrets.wg-home-private-key = { };

    networking.wireguard.interfaces.wg-home = {
      privateKeyFile = config.krops.secrets.wg-home-private-key.path;
      ips = [ "${cfg.address}/24" ];
      peers = [
        {
          allowedIPs = [ "10.80.0.0/24" ];
          publicKey = "UyZRAVTIc/RMs/J+591wrA8lHU0e8dwDJJwcpRb3xQA=";
          endpoint = "87.140.16.73:51820"; # IPv6 is tunneled so legacy is preferred
          persistentKeepalive = 25;
        }
      ];
    };

    networking.firewall.trustedInterfaces = [ "wg-home" ];
  };
}