{
  pkgs,
  config,
  lib,
  inputs,
  ...
}: let
  cfg = config.system.vpn-confinement;
in {
  imports = [inputs.vpn-confinement.nixosModules.default];

  options.system.vpn-confinement = {
    enable = lib.mkEnableOption "enables vpn-confinement";

    # toggle for mullvad mexico w/ openvpn
    vpncon_mex = lib.mkOption {
      type = lib.types.bool;
      default = false;
      description = "enable pia vpn to mexico using openvpn";
    };
  };

  config = lib.mkIf cfg.enable {
    # Define VPN network namespace
    vpnNamespaces.wgmex = {
      enable = true;
      wireguardConfigFile = "/etc/wireguard/mullvad.conf";
      accessibleFrom = [
        "10.0.0.0/8"
      ];
      portMappings = [
        {
          from = 7103;
          to = 7103;
        }
      ];
      openVPNPorts = [
        {
          port = 51820;
          protocol = "both";
        }
      ];
    };

    # secrets only if VPN is enabled
    sops.secrets = {
      "vpncon_mex_config" = {
        owner = "root";
        group = "root";
      };
    };
  };
}
