I was wondering, does anyone know of a solution to do app-specific locking, so that they can only be accessed with a pin or with my ring?
@Berg Huh! I guess I'll have to check when I get my ring :)
That's very sad. I remember when I got my first YubiKey several years ago and was able to play with the tools, since they were open source.
Anyways, things come, things go.
From what I know, all the currently available solutions will only work either with no lock screen, or bypassing your lock screen. There is no option that I know of that asks for your pin and NFC ring.