BlackHole is a modern macOS audio loopback driver that allows applications to pass audio to other applications with zero additional latency.

Open source, local, and self-hosted Amazon Echo/Google Home competitive Voice Assistant alternative

Clean-code version of the baseflight flight controller firmware

Low-cost LS/FS/HS USB sniffer with Wireshark interface

keyball is split keyboard has 100% track ball

CUPS filter for thermal printers as Zjiang ZJ-58, XPrinter XP-58, etc

QMK TrackBall with 3 Switches (TB3S)