codecrafters-io/build-your-own-x

Master programming by recreating your favorite technologies from scratch.

[](https://codecrafters.io/github-banner) ## Build your own <insert-technology-here> This repository is a compilation of well-written, step-by-step guides for re-creating our favorite technologies from scratch. > *What I cannot create, I do not understand — Richard Feynman.* It's a great way to learn. * [3D Renderer](#build-your-own-3d-renderer) * [AI Model](#build-your-own-ai-model) * [Augmented Reality](#build-your-own-augmented-reality) * [BitTorrent Client](#build-your-own-bittorrent-client) * [Blockchain / Cryptocurrency](#build-your-own-blockchain--cryptocurrency) * [Bot](#build-your-own-bot) * [Command-Line Tool](#build-your-own-command-line-tool) * [Database](#build-your-own-database) * [Docker](#build-your-own-docker) * [Emulator / Virtual Machine](#build-your-own-emulator--virtual-machine) * [Front-end Framework / Library](#build-your-own-front-end-framework--library) * [Game](#build-your-own-game) * [Git](#build-your-own-git) * [Memory Allocator](#build-your-own-memory-allocator) * [Network Stack](#build-your-own-network-stack) * [Neural Network](#build-your-own-neural-network) * [Operating System](#build-your-own-operating-system) * [Physics Engine](#build-your-own-physics-engine) * [Processor](#build-your-own-processor) * [Programming Language](#build-your-own-programming-language) * [Regex Engine](#build-your-own-regex-engine) * [Search Engine](#build-your-own-search-engine) * [Shell](#build-your-own-shell) * [Template Engine](#build-your-own-template-engine) * [Text Editor](#build-your-own-text-editor) * [Visual Recognition System](#build-your-own-visual-recognition-system) * [Voxel Engine](#build-your-own-voxel-engine) * [Web Browser](#build-your-own-web-browser) * [Web Server](#build