libraries

It seems this is literally written in the horrible Arduino "everything in one huge file" style: https://github.com/trustcrypto/OnlyKey-Firmware/blob/master/... The funny thing is they have a "Source code reviewed by Codacy" badge on the readme claiming the code is grade A... but if you actually click through, of course Codacy didn't pick up the .ino file at all, so in fact nothing of substance is being reviewed. That .ino file wouldn't pass any style review... it's a mess. Anyway, looks like that firmware is incomplete (e.g. "onlykey.h" is missing). Just a quick scroll through the code gives me zero confidence in this thing, code quality wise. Someone who can't consistently indent code almost certainly isn't qualified to be writing security-critical software. Edit: looks like the rest of the code is here, and yeah, it doesn't inspire much