So after almost 50 years of hacking, I'm starting to feel it in my hands. But I don't have any wrist problems -- no carpal tunnel. What I have is tendonitis in my fingers, primarily in my middle fingers and my right pinky (from slamming Enter several million times). I've had steroid injections into the tendon sheaths of my fingers a couple of times, which hurts like a bugger when it's done but definitely improves thi…
There are some styles of "chording" keyboards that might help too, and some that would be way worse. Chording keyboard are also wildly different to regular keyboards, totally alien by comparison to just splitting a keyboard.