It claims to:

> Use your built-in IR emitters and camera in combination with facial recognition to prove who you are.

I wonder if the "could be enough to do it" is kind of pessimistic. That is, it is open source software -- you can install it on whatever computer you want, including one without an advanced IR camera. Or, the user could have some obscure IR camera, which might not be detected properly/might not have Linux drivers. It seems hard to make guarantees for arbitrary hardware.