learn

A complete biology learning platform for high school students, with a full learning path from Gaokao to competition level.

All Algorithms implemented in Python

A comprehensive Go handbook for software engineers covering fundamentals, idiomatic Go, concurrency, generics, testing, APIs, databases, performance, microservices, system design, and production engineering.

All four volumes of New Concept English, with online passage readings, tap-to-play individual sentences, and Chinese-English parallel text.