One thing I've wanted for a while is a way to properly backup a webauthn token. An approach I discussed a couple of weeks ago [1] was:
1: Generate on-hardware webauthn master key on device A.
2: Generate on-hardware key-pair on device B
3: Export B’s public key, import to A
4: On Device A: Encrypt master key with B’s public key
5: Export encrypted master key to B
6: Decrypt on B
I guess this would probably be possible with this device? Perhaps there are some even more clever way to do it.