Master programming by recreating your favorite technologies from scratch.

🤯 LobeHub - an open-source, modern design AI Agent Workspace. Supports multiple AI providers (OpenAI / Claude 4 / Gemini / DeepSeek / Ollama / Qwen), Knowledge Base (file upload / RAG ), one click install MCP Marketplace and Artifacts / Thinking. One-click FREE deployment of your private AI Agent application.

21 Lessons, Get Started Building with Generative AI

Curated list of project-based tutorials

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

A collective list of free APIs

📚 Freely available programming books

Production-ready platform for agentic workflow development.

《Hello 算法》：动画图解、一键运行的数据结构与算法教程。支持 Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart 代码。简体版和繁体版同步更新，English version in translation

Interactive roadmaps, guides and other educational content to help developers grow in their careers.

Collection of awesome LLM apps with AI Agents and RAG using OpenAI, Anthropic, Gemini and opensource models.

An open source payments switch written in Rust to make payments fast, reliable and affordable

freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

A complete computer science study plan to become a software engineer.

🎓 Path to a free self-taught education in Computer Science!

A curated list of free courses with certifications. Also available at https://free-certifications.com/

High performance self-hosted photo and video management solution.

A feature-rich command-line audio/video downloader

The personal finance app for everyone

利用AI大模型，一键生成高清短视频 Generate short videos with one click using AI LLM.

Get up and running with OpenAI gpt-oss, DeepSeek-R1, Gemma 3 and other models.

#1 Locally hosted web application that allows you to perform various operations on PDF files

The first real AI developer

An AI Hedge Fund Team

All Algorithms implemented in Python