My split, ergonomic Corne keyboard is great. I love pairing with a trackball in-between the halves:
But what if you took the two halves of this split keyboard, jammed them together with a built-in trackball and threw in some extra features? That's the cocot46plus.
I prefer the ergonomics of a
On this keyboard it’s the nub in under the ball. Some keyboards with trackballs have a ring around the ball that can be used for scrolling, that would also be an encoder.