Why a raspberry pi 3?
A pi 4 would be better, but a 3 is what I had available.
Why this display? Is not 256x48 a very low resolution?
I'm only using this display because it looks beautiful. But being honest, If I really needed a better resolution, I would use my laptop. I do hope that I can use my phone as a remote display, but with this project I'm trying to be an artist and a (kernel) hacker more than a user.
Which keyboard is this?
I got is on Ali, it's simply referred to as K68 and it is not backlit.