I was a bit surprised by the solution in the article and then again when I saw a load of supporting comments. I have really debilitating pain in my hands and wrists and as far as I can tell, it started with the first MBP I had using chiclet keys. To this day, I can't type on a modern Apple keyboard without my pain flaring up (although the later 2019 model was a big improvement for me).
Add on the sharp edge of the laptop right where a wrist might sit and the thing was an ergonomic nightmare for me. For quite some time, I typed by using two pens to peck at the keys. I then spent years on a dictation-based solution to writing code (https://github.com/dictation-toolbox). I really thought I was going to have to pursue a new career. Fortunately, I tried a friend's Kinesis Advantage and found that helped alleviate the symptoms. It's hard to convey how much relief I felt. I was skeptical of the Kinesis since it seemed gimmicky and because I had no success with other ergonomic keyboards, but it works for me. It's not pain-free, but it's livable. As a secondary benefit, it can flip to sending Dvorak keypresses. I used to do that at the OS level, but it wouldn't work in some programs and it was really annoying for anyone I might pair program with.
The low key travel distance on modern laptops is a killer for me. I don't think I type particularly aggressively, but I did originally learn to type on an Apple IIs. I've found with most chiclet keys that pressing the key bottoms out before my fingers expect and I end up jamming them. I have a work-issued MBP now and it's mostly workable because I can type on an external keyboard at home, but I dread having to travel with this thing. For my personal laptop, I ended up with Lenovo just because it had the best travel distance I could find. It's still a chiclet keyboard though and not nearly as comfortable as older laptops.
I really miss the old AlBook MBP keyboard. That was the last laptop I could comfortably use. Apple's equipment is still incredibly popular, so I appreciate that their ergonomics are not problematic for many people. I just never would have thought that an Apple keyboard would have improved RSI symptoms. I'm happy the author found a solution and shared it. Typing in pain is not a pleasant experience and being able to address it for the cost of two keyboards is much cheaper than heading down the medical path.