哔哩下载姬downkyi，哔哩哔哩网站视频下载工具，支持批量下载，支持8K、HDR、杜比视界，提供工具箱（音视频提取、去水印等）。

open-source IEEE 802.11 WiFi baseband FPGA (chip) design: driver, software

DEPRECATED mbed OS uVisor -- device security layer for ARMv7M microcontrollers

open source training courses about distributed database and distributed systems