Cleartouch (touchpad visualizer)

[canadaduane]

I've been hacking on a touchpad event visualizer in Zig called Cleartouch:

(Demo video here: https://www.youtube.com/watch?v=Cpn_lILPhEM)

The goal is to capture all three layers of touchpad events (kernel, libinput, Xorg/wayland) and be able to capture results, then make annotations such as "I expected a click at this point" or "I was typing at this point when the touchpad erroneously received a click event" which will help guide improvements based on real data and experiences.

This project is similar to Peter Hutterer's mtview project of a few years ago. I started it before learning of his work, so I will soon take a better look at what he's done there so I can either integrate it or figure out if there's a need for a separate project.