I did, and looked at every single file and directory. There is nothing.

Here is all it says:
"Keypad

Credits to Andrew
Layouts

designs, files etc"

I'm cool with shipping the stealth keyboard part to someone if someone wants to take it to a shop that can laser etc. it, or has done it to theirs already. And I can describe or make a file with what I am intending, but obviously I'd like to reinvent the wheel as little as possible.