Educational GitHub Repositories (2026) · Open Source Tools

Bash is all you need - A nano claude code–like 「agent harness」, built from 0 to 1

A free cartoon browser game about how the internet really works: lay fiber and subsea cables, peer at IXPs, bill on the 95th percentile and survive backhoes, sharks and route leaks on your way to Tier 1.

A powerful utility for Among Us designed to enrich your game experience with custom features!

eXeLearning is an AGPL-licensed free/libre tool to create and publish open educational resources.

Real-time 3D visualization of space.

Advanced Chess Assistance System for Chess.com, Lichess.org, Pychess.org and more. Hassle-free 1-click install, no downloading. All devices and browsers supported.

Interactive Raft consensus visualizer. Crash nodes, partition the network, cut single links one-way, and watch elections and log repair play out — with every safety invariant machine-checked against the paper.

Universal emulation platform and framework.

Simulation of radioactive decay