Originally, I found the up/down buttons to be mushy and unreliable to the point I got fed up. I just wanted to 3d print a new case to have nice metal buttons but I found out the desk supports a smart controller.[1] So I reverse-engineered the connection just enough to hook an ESP32 and buttons in parallel (either can control the desk) and add up/down actions to Home Assistant via ESPHome. And my buttons have RGB LEDs for notifications. 8)
[1] If I were a company, I would have bought the controller right away because their solution is certainly less janky than mine.