This is version 2.1 running all devices in report mode and compiled with Pico-SDK 1.5.1 and TinyUSB 0.17.0.
This should fix #66 keyboards with QMK firmware and NKRO support.
Thanks @zoushiyin and @nvllsvm for reporting and testing!
ps2x2pico.uf2
uses the mouse rate set by the host PC
ps2x2pico-100hz.uf2
uses fixed 100 Hz mouse rate, ignores host request
ps2x2pico-200hz.uf2
uses fixed 200 Hz mouse rate, ignores host request