I finished setting up my #Nitrokey3 , but alas, NFC just doesn't work across any of the android devices I've tried (not detected at all). My older #yubikey (neo) however does not have this problem. So sadly, I have ordered some new yubikeys, as nitrokey3 NFC just doesn't work.
Fwiw: I tested NFC with phone cases off, and still nothing at all detected. Frustrating!