Sapient, not sentient. Sci-fi has co-opted the word, but sentient basically means able to feel emotions. There are plenty of sentient species right here at home. Sapient is the word sci-fi usually wants, there are no known sapient species aside from humans. Though some may argue that a couple other animals may qualify, it’s a very fuzzy concept that is hard to identify with a being unable to communicate abstract concepts.
Ergodox makes keyboards like this. Don’t know if they sell them in Colemak key position like this one, I know they do QWERTY. I’ve been meaning to get one myself for aaages, but I have too many other stupid things I spend my money on instead.