Curated guides to reimplement famous software from scratch
GitHub collection of tutorials for building clones of databases, browsers, games, and more. Aimed at developers who learn by implementing core systems themselves.
| Resource | Pricing | Type | Licence | Platforms |
|---|---|---|---|---|
| Build Your Own X | Free | Learning | — | web |
| LLMs from Scratch | Free | Learning | — | web |
| Learn Claude Code | Free | Learning | MIT | web |
| AI Agents for Beginners | Free | Learning | MIT | web |
| AI Engineering from Scratch | Free | Learning | MIT | web |
| RAG Techniques | Free | Learning | — | web |
| Hello Agents | Free | Learning | — | web |
Build a GPT-like model in PyTorch
Build a minimal Claude Code–like agent harness from scratch—bash is all you need.
12 lessons to get started building AI agents from the ground up.
503 lessons across 20 phases—implement backprop, tokenizer, and agents by hand.
This repository showcases various advanced techniques for Retrieval-Augmented Generation (RAG) systems.
Hands-on course on building AI agents from zero—principles and practice.
