Feasibility for supporting M5Stack Cardputer Kit (M5StampS3)

M5Stack Cardputer Kit has keyboard and using M5StampS3.
It will be much more easier to keyboard to enter passphrase and make key more secure.

Is it possible or hard to make support this hardware?

From my understanding, Only adding keyboard support is enough but I'm not sure.

Keyboard is attached via 74HC138 decoder.

Ref: https://docs.m5stack.com/en/core/Cardputer

Start with the Cardputer hardware reference linked in the issue, focusing on the M5StampS3 and 74HC138 keyboard connection. Determine whether keyboard support alone covers the requested passphrase input and what additional Jade changes would be required; done means a documented feasibility decision and, if viable, a scoped support plan.

Written by the indexing model from the issue text.