Why press many button when few button do trick? To that end, he whipped up a tidy macropad to make daily computing tasks easier. The build is based around an Adafruit RP2040 Feather ThinkInk devboard, chosen because it plugs straight into a readily-available 4.2 inch e-ink. Everything is wrapped up in a 3D printed frame, with an bracket to mount it to the monitor arms on the desk. The combination of e-ink display and button pad is a great way to display the function of each key without excess complexity.