Tracy on Nostr: No, that was my misconception too. The tapsigner holds your private keys. So it's ...

No, that was my misconception too. The tapsigner holds your private keys. So it's cold storage in a way. To sign on-chain transactions you tap the card to your phone and the signing happens via NFC. I keep my Tapsigner with me, so that wallet holds an intermediate amount of funds. I can author a transaction to my Phoenix wallet and tap to send, for example.