Plus [ergodoxen] are so much more ergonomic than that.
I really can’t agree with that. The μTron is a much more carefully designed and much more solidly built keyboard than the Ergodox, and which one is “more ergonomic” depends a lot on the typist. I think each has some advantages and disadvantages from an “ergonomics” perspective.
The Ergodox has the advantage of being a great community project, fully programmable, and something that people can take pride in building themselves. But there are IMO some real problems with the design.
The main problem I have with the μTron is that it’s designed for Japanese people with tiny hands. My average-American-male size hands are a bit too big.
Anyway, to answer the OP: I don’t think it’s especially programmable, but you could always replace or augment the controller with your own Teensy or whatever.