Build Your Own Technologies from Scratch
Build Your Own is a collection of step-by-step guides that allow you to rewrite your favorite technologies such as database, operating system, Git, Docker, and programming language from scratch. It offers a learning experience by doing, in line with Feynman's philosophy of 'I cannot understand what I cannot create'.
Updates
- August 2, 2026: Stars 506,894 → 534,641.
What you get
- You learn the internal logic of systems by doing.
- A wide range of topics, from database to operating system.
- Practical projects rather than theoretical explanation.
How to use?
You can choose the technology you are interested in on the GitHub page and follow the step-by-step guides.
How to use it with AI?
I'll give you a list of links to step-by-step guides called 'build-your-own-x' that will teach you how to build your own technology (database, operating system, programming language, web server, etc.) from scratch. Review this list and list which projects I should start with according to my current level and goal, and you will get a weekly work plan. My level: [eg. beginner]. My goal: [eg. making my own web server].
Repository: https://github.com/codecrafters-io/build-your-own-x. Follow the official instructions in the README of this repository for setup and execution.
Before starting, check which OS we are on and if the necessary tools (e.g., Python, Node.js, Git, Docker) are installed. Install any missing ones step-by-step according to this system.
Create a new, empty folder to work in. Do not touch any files outside this folder and do not delete anything. Tell me what you are going to do in one sentence before running each command.
Tell me what I should see on the screen at the end of each step. If an error occurs, I will paste the error message to you exactly as it is, and we will fix it together.
Related dictionary terms
Links
TreScout did not build this tool · we found it in GitHub trends and wrote it up. This page describes the repository as of 2026-05-29: The star count and our text belong to that day, the repository may have changed since. Check the repository link for the current state. The introductory text was prepared with AI from the repository's own documentation, and this page was machine-translated from the Turkish original · the Turkish version prevails.