We are still actively developing this project and some functionality/specs may change but we wanted to start sharing where we are at.

What if I lose my TAPSIGNER? Use your backup file and a copy of the decryption code from the back of the card to recover the XPRV. If you have those, you don't need the original card.

37/ Do I give the TAPSIGNER to other people as payment? No. Keep the TAPSIGNER under your control at all times. You might be thinking of the @SATSCARD.