so I'm guessing something like Time-based One-Time Password algorithm (TOTP) then flashed out from flashlight to the sensor on the door? Why not just TOTP in m

so I'm guessing something like Time-based One-Time Password algorithm (TOTP) then flashed out from flashlight to the sensor on the door? Why not just TOTP in my google Authenticator app then just type into keypad? Like this: https://github.com/cathalgarvey/formadoor https://github.com/cathalgarvey/formadoor