A universal resource directory collecting high-quality curated open source project lists on various topics, helping you find reliable tools in one place.

Open-source codebase for the world's famous free coding platform, offering complete curricula from beginner to full-stack development.

A massive collection of free programming eBooks from around the world, helping you save money and time by finding learning resources in one place.

A website offering interactive learning roadmaps to help developers plan their technical growth across fields like frontend, backend, AI, and more.

A comprehensive guide to system design, helping you ace big tech interviews with included flashcards.

A curated list of Python libraries and tools covering development, data, AI, and more, helping you find reliable resources quickly.

This is a tool that makes building web interfaces easy, letting you write frontend code like assembling building blocks, suitable for those wanting to build dynamic websites.

This is the core source code of the Linux operating system, acting as the computer's brain to manage hardware and resources. It is suitable for those who want to deeply understand or modify the system layer.

This is a comprehensive collection of classic algorithms implemented in Python, suitable for students and job seekers to practice programming basics and prepare for technical interviews, with clear and runnable code.

A complete roadmap for free self-taught computer science education, gathering open course resources from top universities worldwide to help you master computer basics systematically.

Google's open-source machine learning framework that helps you easily build and deploy AI models, suitable for research and development.

The core source code of Microsoft's free code editor, supporting editing, debugging, and extensions for multiple programming languages, one of the most popular tools for developers.

A systematic Python learning guide with 100-day daily tasks, suitable for absolute beginners, covering basic syntax to practical projects.

An official collection of Git ignore rule templates by GitHub, helping you configure projects quickly and avoid committing useless files.

A curated list of Go resources that helps you quickly find useful frameworks, libraries, and tools, saving you from searching everywhere.

A Python library that lets anyone easily use top-tier AI models for text, images, and audio without training from scratch.

A Microsoft open-source Python tool that quickly converts common files like PDF, Word, and Excel to Markdown, specifically designed for AI model consumption.

A self-evolving AI assistant that remembers your habits, automates tasks, and supports multiple models and platforms.

This is a curated list of free computer science video courses from top universities globally, saving you search time and leading directly to the knowledge you want, covering basics to advanced topics.

An open-source project simulating an AI hedge fund, featuring AI avatars of 19 investment masters like Buffett to analyze stocks and make decisions, for learning and entertainment only.