withmarbleapp / os-taxonomy

An open, structured graph of 1,616 primary-school micro-topics with prerequisite dependencies and curriculum standards alignment.

Renhuai123 / ziwei-doushu

Open-source Zi Wei Dou Shu (purple star astrology) chart-calculation engine with a TypeScript implementation, plus large chart-reading datasets.

ashishps1 / awesome-system-design-resources

A curated list of free system design learning materials and interview preparation problems and concepts.

datawhalechina / easy-vibe

A free Vibe Coding course that teaches beginners to build and launch AI-assisted products from plain-language descriptions.

jackfrued / Python-100-Days

A free Chinese-language 100-day Python course, from basics to advanced topics, with lessons and code examples.

krahets / hello-algo

An open-source, animated, illustrated tutorial on data structures and algorithms with runnable code in many languages.

AgriciDaniel / claude-seo

Claude Code plugin that runs parallel SEO audits covering technical SEO, E-E-A-T, schema, GEO, and agent readiness.

byoungd / up

An open, bilingual Chinese-language book-guide on lifelong learning in the AI era, covering English study, AI learning, real projects, and personal recovery.

yvoronoy / awesome-english

A curated list of resources for learning English across listening, speaking, reading, writing, grammar, and vocabulary.

pret / pokeheartgold

Work-in-progress decompilation of Pokémon HeartGold and SoulSilver for the Nintendo DS, reconstructing the game's source code.

microsoft / AI-For-Beginners

A 12-week, 24-lesson beginner curriculum covering AI fundamentals, neural networks, computer vision, NLP, and AI ethics with TensorFlow and PyTorch labs.

microsoft / ML-For-Beginners

A 12-week, 26-lesson beginner curriculum on classic machine learning using Scikit-learn, with quizzes and projects in Python and R.

Lucas0623z / NoteLite

Open-source desktop app that recognizes sheet music from PDFs or images into editable scores, then exports MusicXML/MIDI and offers guided practice.

ossu / computer-science

A free, self-paced computer science curriculum assembled from online courses and books, modeled on undergraduate CS degree requirements.

xiaolai / the-craft-of-selfteaching

A Chinese-language book by Li Xiaolai teaching self-learning skills through a Python programming curriculum, delivered as Jupyter notebooks.

ankidroid / Anki-Android

Android app for studying Anki spaced-repetition flashcards, an official port of the Anki system.

hefengxian / my-ielts

A Vue-based static site collecting IELTS prep materials covering vocabulary, grammar, listening, reading, and writing.

hughhowey / neo

A local, distraction-free desktop word processor for writing novels, with a bookshelf library and manuscripts formatted like books as you type.

mit-pdos / xv6-riscv

A teaching operating system: a re-implementation of Unix Version 6 in ANSI C for RISC-V multiprocessors, running on QEMU.

1sdv / TripStar

A multi-agent AI travel planner that builds itineraries, budgets, weather, and hotel picks for user-specified cities and dates.