* [HUSTOJ 26.08.19](https://github.com/zhblue/hustoj) – Online judge system for programming contests and training, supporting C/C++/PHP on Linux with easy installation.

* [Code.org v2026-08-27.0](https://github.com/code-dot-org/code-dot-org) – Platform powering educational courses, tutorials, and tools for computer science learning and student progress tracking.