It probably makes sense with a silent linear keyswitch for users who are used to the obvious acoustic feedback of a typewriter. Since cheap modern MCUs have pr

It probably makes sense with a silent linear keyswitch for users who are used to the obvious acoustic feedback of a typewriter. Since cheap modern MCUs have programmable ADCs, you can wiggle an output pin and experiment with different sounds. I've tried something a bit more "tinkle" like than a flat "beep" and it has its charms, but it could go a whole new place like different tones for special keys (simulating the clunk of a shift or space bar) or even keys that you could subtly differentiate by sound to tell if you're off alignment.