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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
- Augmented Reality
- BitTorrent Client
- Blockchain / Cryptocurrency
- Bot
- Command-Line Tool
- Database
- Docker
- Emulator / Virtual Machine
- Front-end Framework / Library
- Game
- Git
- Network Stack
- Neural Network
- Operating System
- Physics Engine
- Programming Language
- Regex Engine
- Search Engine
- Shell
- Template Engine
- Text Editor
- Visual Recognition System
- Voxel Engine
- Web Browser
- Web Server
- Uncategorized
Tutorials
Build your own 3D Renderer
- C++: Introduction to Ray Tracing: a Simple Method for Creating 3D Images
- C++: How OpenGL works: software rendering in 500 lines of code
- C++: Raycasting engine of Wolfenstein 3D
- C++: Physically Based Rendering:From Theory To Implementation
- C++: Ray Tracing in One Weekend
- C++: Rasterization: a Practical Implementation
- C# / TypeScript / JavaScript: Learning how to write a 3D soft engine from scratch in C#, TypeScript or JavaScript
- Java / JavaScript: Build your own 3D renderer
- Java: How to create your own simple 3D render engine in pure Java
- JavaScript / Pseudocode: Computer Graphics from scratch
- Python: A 3D Modeller
Build your own Augmented Reality
- C#: How To: Augmented Reality App Tutorial for Beginners with Vuforia and Unity 3D [video]
- C#: How To Unity ARCore [video]
- C#: AR Portal Tutorial with Unity [video]
- C#: How to create a Dragon in Augmented Reality in Unity ARCore [video]
- C#: How to Augmented Reality AR Tutorial: ARKit Portal to the Upside Down [video]
- Python: Augmented Reality with Python and OpenCV
Build your own BitTorrent Client
- C#: Building a BitTorrent client from scratch in C#
- Go: Building a BitTorrent client from the ground up in Go
- Nim: Writing a Bencode Parser
- Node.js: Write your own bittorrent client
- Python: A BitTorrent client in Python 3.5
Build your own Blockchain / Cryptocurrency
- ATS: Functional Blockchain
- C#: Programming The Blockchain in C#
- Crystal: Write your own blockchain and PoW algorithm using Crystal
- Go: Building Blockchain in Go
- Go: Code your own blockchain in less than 200 lines of Go
- Java: Creating Your First Blockchain with Java
- JavaScript: A cryptocurrency implementation in less than 1500 lines of code
- JavaScript: Build your own Blockchain in JavaScript
- JavaScript: Learn & Build a JavaScript Blockchain
- JavaScript: Creating a blockchain with JavaScript
- JavaScript: How To Launch Your Own Production-Ready Cryptocurrency
- JavaScript: Writing a Blockchain in Node.js
- Kotlin: Let’s implement a cryptocurrency in Kotlin
- Python: Learn Blockchains by Building One
- Python: Build your own blockchain: a Python tutorial
- Python: A Practical Introduction to Blockchain with Python
- Python: Let’s Build the Tiniest Blockchain
- Ruby: Programming Blockchains Step-by-Step (Manuscripts Book Edition)
- Scala: How to build a simple actor-based blockchain
- TypeScript: Naivecoin: a tutorial for building a cryptocurrency
- TypeScript: NaivecoinStake: a tutorial for building a cryptocurrency with the Proof of Stake consensus
- Rust: Building A Blockchain in Rust & Substrate
Build your own Bot
- Haskell: Roll your own IRC bot
- Node.js: Creating a Simple Facebook Messenger AI Bot with API.ai in Node.js
- Node.js: How to make a responsive telegram bot
- Node.js: Create a Discord bot
- Node.js: gifbot - Building a GitHub App
- Node.js: Building A Simple AI Chatbot With Web Speech API And Node.js
- Python: How to Build Your First Slack Bot with Python
- Python: How to build a Slack Bot with Python using Slack Events API & Django under 20 minute
- Python: Build a Reddit Bot
- Python: How To Make A Reddit Bot [video]
- Python: How To Create a Telegram Bot Using Python
- Python: Create a Twitter Bot in Python Using Tweepy
- Python: Creating Reddit Bot with Python & PRAW [video]
- R: Build A Cryptocurrency Trading Bot with R
- Rust: A bot for Starcraft in Rust, C or any other language
Build your own Command-Line Tool
- Go: Visualize your local git contributions with Go
- Go: Build a command line app with Go: lolcat
- Go: Building a cli command with Go: cowsay
- Go: Go CLI tutorial: fortune clone
- Nim: Writing a stow alternative to manage dotfiles
- Node.js: Create a CLI tool in Javascript
- Rust: Command line apps in Rust
- Rust: Writing a Command Line Tool in Rust
Build your own Database
- C: Let's Build a Simple Database
- C++: Build Your Own Redis from Scratch
- C#: Build Your Own Database
- Clojure: An Archaeology-Inspired Database
- Crystal: Why you should build your own NoSQL Database
- Go: Build Your Own Database from Scratch: Persistence, Indexing, Concurrency
- Go: Build Your Own Redis from Scratch
- JavaScript: Dagoba: an in-memory graph database
- Python: DBDB: Dog Bed Database
- Python: Write your own miniature Redis with Python
- Ruby: Build your own fast, persistent KV store in Ruby
- Rust: Build your own Redis client and server
Build your own Docker
- C: Linux containers in 500 lines of code
- Go: Build Your Own Container Using Less than 100 Lines of Go
- Go: Building a container from scratch in Go [video]
- Python: A workshop on Linux containers: Rebuild Docker from Scratch
- Python: A proof-of-concept imitation of Docker, written in 100% Python
- Shell: Docker implemented in around 100 lines of bash
Build your own Emulator / Virtual Machine
- C: Home-grown bytecode interpreters
- C: Virtual machine in C
- C: Write your Own Virtual Machine
- C: Writing a Game Boy emulator, Cinoop
- C++: How to write an emulator (CHIP-8 interpreter)
- C++: Emulation tutorial (CHIP-8 interpreter)
- C++: Emulation tutorial (GameBoy emulator)
- C++: Emulation tutorial (Master System emulator)
- [C++: _NES Emulator From
