6) I've built a hardware signer. The Favilla KEY generates the key on the device, keeps it in a secure element, and serves its own client to your phone straight off the device, so there's no login step to plug Pomegranate into. I do think it's the right answer for people who will never buy hardware, though. One question: is there a way to export the key later? Someone who starts on Pomegranate and later wants a hardware signer shouldn't have to give up their npub to move.