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Master programming by recreating your favorite technologies from scratch.

😎 Awesome lists about all kinds of interesting topics

A collective list of free APIs

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

:books: Freely available programming books

Your own personal AI assistant. Any OS. Any Platform. The lobster way. 🦞

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

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

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

The definitive list that answers "I want to do X in Python, which tool should I use?"

A list of Free Software network services and web applications which can be hosted on your own servers

Curated list of project-based tutorials

Repo for counting stars and contributing. Press F to pay respect to glorious developers.

An agentic skills framework & software development methodology that works.

The library for web and native user interfaces.

Linux kernel source tree

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools and more.

The agent that grows with you

All Algorithms implemented in Python

Skills for Real Engineers. Straight from my .agents directory.

This is the repo for Vue 2. For Vue 3, go to https://github.com/vuejs/core

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

A single CLAUDE.md file to improve Claude Code behavior, derived from Andrej Karpathy's observations on LLM coding pitfalls.

Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

The open source coding agent.

An Open Source Machine Learning Framework for Everyone

📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings

An agent-managed museum exhibit, built in Rust with Gajae-Code / LazyCodex — developed and maintained with no human intervention.

Free domain registration and practical DNS learning resources for everyone.