Because there is no such thing on the market. And for fun! Many sit/stand desks in the market has up to 4 memory buttons, though probably not a LCD touch screen. The IKEA BEKANT control has neither, just Up and Down.
How long and how much did it cost?
4 hours and about $500 (IKEA desk is 90% of the cost)
What do you like most about the hack?
The cat on top of it (joking) 😉 Also be able to stand while teleworking (but without Corona Beer.)
What was the hardest part about this hack?
Open the ABS box, extract the circuit and connect each three lanes to test probe hooks. But no soldering was required.
What to pay special attention to?
Details of the user interface and functionality. Not kill the lanes of the two buttons backplane.
Looking back, would you have done it differently?
Start directly with M5paper as the M5Stack Core2 is too small and thick.