Build Your Own X

Build Your Own X is a GitHub repository that collects step-by-step guides for recreating well-known technologies from scratch. It is a long, community-maintained list of tutorials grouped by topic.

The list is sorted into categories such as databases, shells, web servers, programming languages and operating systems. Under each category you find guides written by other authors, often in different programming languages. Following one of them is a way to learn how a tool works by building a simple version of it yourself.

• Browse by topic such as databases and shells
• Tutorials for web servers and compilers
• Guides written in several programming languages
• Links to guides hosted by other authors
• Contributions accepted through pull requests

Students who want to understand core computing topics, programmers who want a challenging project, and self-taught developers looking for a path beyond everyday frameworks. Experienced engineers may use it to pick a side project.

The repository is free to read on GitHub. The list itself does not provide the guides, so the quality and length of each tutorial depends on the author who wrote it. Check the date and language of a guide before you start, and expect some links to change over time.