[danstiner]

Yep exactly, Krypton looked interesting, sorry to see it's dead.

And yep Apple is way ahead on this imo, the touch sensor securely communicates with the Secure Enclave, I'm not aware of other laptop hardware doing that. (https://support.apple.com/en-bh/guide/security/sec067eb0c9e/...)

I'd love to have something equivalent for Linux, but given that requires hardware support I think relaying auth requests to your phone is the closest equivalent.