How to make wg-quick not start by default?

Help
1

I have a wireguard connection set up in networking.wg-quick.interfaces. It starts on boot and if I stop it with systemctl stop wg-quick-protonVPNCA70.service it restarts when I run nixos-rebuild switch. How can I make it off by default? This is the config:

  networking.wg-quick.interfaces.protonVPNCA70 = {
    address = ["10.2.0.2/32"];
    peers = [
      {
        allowedIPs = ["0.0.0.0/0"];
        endpoint = "91.219.212.194:51820";
        publicKey = "XXX";
      }
    ];
    privateKey = "XXX";
  };
2

If you’re using unstable, great news: there is now an autostart option!

If you’re on 21.11 (like me), do this:

{
  networking.wg-quick.interfaces.foobar = { ... };
  systemd.services.wg-quick-foobar.wantedBy = lib.mkForce [ ];
}

Since wantedBy = [ "multi-user.target" ] is how systemd units specify “start me on boot”, this overwrites that field with [], and the unit is never invoked automatically.