As far as I know, no? Because NIP-46 is more like an air-gapped method with QR-code, right? but the feature I would like is a serial port method.

Here are codes of noStrudel

https://github.com/hzrd149/nostrudel/commit/d8e08d6a94a839268b5704433990f6a53d11d581

Either way, I'm happy if I won't be treated as a Bad Relay guy ! :-)