When standing, I strongly agree with the article that getting some sort of rug is good for comfort. I have a very furry rug for it.
Moving around often is the most important factor, which is easy for me because I like to walk around while thinking.
I find trackballs very tiring on the thumb. Vertical mouse is quite comfortable. Ergonomic keyboard seems unnecessary to me, because I type with straight wrists on a normal keyboard anyway.
As for straight wrists, I find that naturally happens for me as well, but my impression is that it's not great bc the torsion at the elbow can lead to RSI.
That said, I do move around a lot instead of keeping my hands always on keyboard, so maybe that's why I don't experience the typical fatigue at joints associated with keyboard usage.
With this you can:
- have a desk with a smaller footprint, because it doesn't need to stick out to accommodate the keyboard, except when in use, and
- keep your thighs parallel to the floor, and your feet flat on the floor
https://www.homedepot.com/p/EVERMARK-Stair-Parts-48-in-x-11-...
One tread for the top. Another tread cut a bit shorter and used as a keyboard tray. I've been using it for 5 years and am happy with it. But it's only suitable for computer use, not for dealing with physical paperwork or handwriting.