Hypothetically, is it possible to add programmable macro keys to custom built mech? Would it also be possible with a teensy and open source driver? If so, is there a basic software for programming them?
Secondly, regarding key size, I have an idea for an unusual layout in which the arrow keys and extras like media keys are compacted to take up less room. Are there any alternative switches & keycaps that could achieve this in a hand-wired board of mainly cherry MX switches?
Thanks for your time!