Oh, I mean I read a bit about them once upon a time. Seedsigner is foss hardware wallet that has QR code support. You could likely find all you need about how it works searching around that
Discussion
i know SS but just wantED to get your thotz for expansIONz of app. t *Y* YODL nostr:npub162zpxufpw8pnuytaf0gfxzkqtvk9rvcwkvppa7x57y3n7qkfpg4shatdhy i app. *U****
None come to mind but I'm sure we could think some stuff up. I think the tech is pretty straight forward
ya. IT seemz s'O'*****i will GIT back 2 *U* 'O'/\/ thIZ*****friend - i likE SS*****s'O' fAR*****arrrrRGHIGH/hi n_n/*****l'O'l |'O;.;O'| *O*z/*\*****/*\*****/*\>< . .. ... ....