So sitting AND standing are both out. Now what? Walking desks? Neutral buoyancy fluid desks? Supine desks?
[1] https://www.amazon.com/dp/B006M2PJV0/
It has helped a lot to balance my sleep as well since I'm usually too tired to stay up late. I highly recommend it to anyone who works long hours behind a desk.
Missed the treadmill desk fad, did we?
In case you really did, yes, that was a thing. Take a treadmill, put a board across the handholds to hold your laptop, start coding.