Master programming by recreating your favorite technologies from scratch.

Linux kernel source tree

Legacy mirror of Darwin Kernel. Replaced by https://github.com/apple-oss-distributions/xnu

A free Windows-compatible Operating System

Spring Framework

极客时间课程工程

The most comprehensive database of Chinese poetry 🧶最全中华古诗词数据库, 唐宋两朝近一万四千古诗人, 接近5.5万首唐诗加26万宋诗. 两宋时期1564位词人，21050首词。

Repo for counting stars and contributing. Press F to pay respect to glorious developers.

Production-Grade Container Scheduling and Management

C++ Requests: Curl for People, a spiritual port of Python Requests.