Repository for PicoUSB - RP2040 based, easy to use and learn - bad USB
A USB key with a Trinket M0 heart and four RGB NeoPixels for customizable glow.
do not use hub but do reboot between two successive installs
hub will provide power (even unpowered hub) for testing but not enough for stable operation, which must be negotiated.
eventually i stopped getting errors about pre-load etc from
sudo kextutil -tn /Library/Extensions/SiLabsUSBDriver.kext