Hello, all: Is there any mechanism to add some kind of 2-factor authentication mechanism either via: a. additional prompting for a HOTP/TOTP key sequence similar to how openvpn allows doing auth-user-pass in addition to certificate-based authentication b. some way to use PGP Auth keys with wireguard so that keys stored on GnuPG-capable smartcards can be used for establishing a VPN connection. c. (some other means) Best, -K