ohhh. Well whatever that cost plus $20 and it could be doable, I think. A patchwork with  nostr:npub1pruks45lzhclsq6xdpzlj48gkwz0aenxn2jcnjzmsc8a8ll9ngys9pnj2f's NSD and one of these from Amazon should do it: https://www.amazon.co.uk/usb-fingerprint-reader/s?k=usb+fingerprint+reader