codecrafters-io/build-your-own-x on Hacker News

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CodeCrafters – Build Your Own <X> repo

story by matthberg · 2026-07-23 · 0 comments

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Build your favorite technologies from scratch

story by kamphey · 2026-07-10 · 0 comments

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The first repo with 500k+ stars

story by sarupbanskota · 2026-05-08 · 0 comments

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Recreating your favorite technologies from scratch

story by bilsbie · 2026-03-02 · 0 comments

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Ask HN: "build your own" tutorials?

story by curtisblaine · 2026-01-29 · 0 comments

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460k Stars on a GitHub Repo

story by vedantnene · 2026-01-26 · 1 comment

…https://github.com/ZachGoldberg/Startup-CTO-Handbook - https://github.com/pilcrowonpaper/copenhagen - https://github.com/codecrafters-io/build-your-own-x

comment by coronapl · 2026-01-15 · in Ask HN: What is your favourite GitHub Repo?

This reads a bit similar to the build-your-own-x series https://github.com/codecrafters-io/build-your-own-x Feel like one of these things a lot of talk about but very tiny do ...

comment by SamDc73 · 2025-12-31 · in Project ideas to appreciate the art of programming

…step-by-step guides for re-creating our favorite technologies from scratch", contains some. * https://github.com/codecrafters-io/build-your-own-x

comment by listic · 2025-12-28 · in Learn computer graphics from scratch and for free

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Most Starred GitHub Repo

story by CafeRacer · 2025-11-07 · 1 comment

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Build your own X

story by pykello · 2025-10-11 · 0 comments

…fits together. For example. [0] "What I cannot create, I do not understand" - Richard Feynman [0] https://github.com/codecrafters-io/build-your-own-x

comment by rvz · 2025-07-11 · in Ask HN: What techniques do you use to remember complex concepts and theories?

This list reminded me of Build-Your-Own-X ( https://github.com/codecrafters-io/build-your-own-x )

comment by JonnyReads · 2025-06-15 · in Writing Toy Software Is a Joy

…have to build complicated things. Build things you enjoy. It will help you find time for it. Check https://github.com/codecrafters-io/build-your-own-x - or search on youtube for any tutorial of things you like. Do things you enjoy, and try…

comment by yashasolutions · 2025-03-24 · in Ask HN: A Message in a Bottle from Gen Z

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Master programming by recreating your favorite technologies from scratch

story by Zekari-Ume · 2025-02-26 · 0 comments

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Master programming by recreating your favorite technologies from scratch

story by gmays · 2025-02-22 · 1 comment

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Ask HN: Any DIY Hardware tutorials out there?

story by yousef_g · 2025-01-28 · 0 comments

Not JS but there's Build Your Own X https://github.com/codecrafters-io/build-your-own-x

comment by nroize · 2024-12-15 · in SVC16: Simplest Virtual Computer

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Ask HN: What are some books/resources where we can learn by building

story by codenlearn · 2024-05-12 · 6 comments

https://github.com/danistefanovic/build-your-own-x

comment by 8BitArmour · 2024-03-28 · in Ask HN: Project based books/courses for C++?

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"Build your own X" projects

story by gjvc · 2023-10-22 · 14 comments

There's also this repo if you're keen on free resources: github.com/codecrafters-io/build-your-own-x

comment by sarupbanskota · 2023-10-19 · in Build your own BitTorrent

You might also find tutorials here useful https://github.com/codecrafters-io/build-your-own-x

comment by sarupbanskota · 2023-10-19 · in Build your own BitTorrent

…can attempt beyond stage 2 if you have the membership. You might also find tutorials here useful https://github.com/codecrafters-io/build-your-own-x

comment by sarupbanskota · 2023-10-19 · in Build your own BitTorrent

…Git, etc. Could be useful to understand how tech works. In terms of a free version, there's also ( https://github.com/codecrafters-io/build-your-own-x ) which is a collection of blog posts where you're building different things in various…

comment by jjackson5324 · 2023-10-16 · in Ask HN: Best Tech Courses/Certifications Under $400 for a Back End Engineer?

https://www3.nd.edu/~dthain/compilerbook/ https://csapp.cs.cmu.edu/ Lot of projects here - https://github.com/codecrafters-io/build-your-own-x

comment by davidddavidson · 2023-07-25 · in Ask HN: What books or courses do you know similar to "From Nand to Tetris"?

…its impact is way smaller than pick up go/rust/cpp/java and carefully try implement challenge like: https://github.com/codecrafters-io/build-your-own-x

comment by zsh_89 · 2023-06-29 · in Racket: Lisp for the modern day

You should submit this to https://github.com/codecrafters-io/build-your-own-x

comment by sarupbanskota · 2023-05-29 · in Let's make a Teeny Tiny compiler (2020)

This repository contains hundreds of resources for implementing complex systems from scratch https://github.com/codecrafters-io/build-your-own-x

comment by sarupbanskota · 2023-05-29 · in Can we create a thread for some of the best materials on CS available online?

In the spirit of building complex systems from scratch, you’ll enjoy this repo https://github.com/codecrafters-io/build-your-own-x that contains several ideas for projects around building things from scratch (eg Build your own Git, Docker,…

comment by sarupbanskota · 2023-05-29 · in Ask HN: What are some good resources for learning about low level disk/file IO?

…mentioned in build-your-own-x [0]. - https://wyag.thb.lt - https://benhoyt.com/writings/pygit/ [0]: https://github.com/codecrafters-io/build-your-own-x#build-yo...

comment by ibitto · 2023-05-13 · in DIY Git in Python

Maybe not only 100 lines of code though, I think of Code Crafters. https://github.com/codecrafters-io/build-your-own-x

comment by ohbarye · 2023-05-12 · in Implement DNS in a Weekend

https://github.com/codecrafters-io/build-your-own-x

comment by _aaed · 2023-04-22 · in The “Build Your Own Database” book is finished

Not a book but an "awesome list"-formatted collection that mentions Crafting Interpreters: https://github.com/codecrafters-io/build-your-own-x (Discussed in https://news.ycombinator.com/item?id=32157759 )

comment by rzzzt · 2023-04-20 · in Review of James Coglan’s Building Git

For the full "Build Your Own X" list: https://github.com/codecrafters-io/build-your-own-x

comment by valbaca · 2023-03-19 · in Build Your Own Redis with C/C++

Here's a whole repository. https://github.com/codecrafters-io/build-your-own-x

comment by sarupbanskota · 2023-01-30 · in The “Build Your Own Redis” Book Is Completed

Not a book, but check [Build your own X]( https://github.com/codecrafters-io/build-your-own-x ), a compilation of well-written, step-by-step guides for re-creating our favorite technologies from scratch.

comment by __warlord__ · 2023-01-17 · in Ask HN: Books that teach programming by building a series of small projects?

There is this excellent Github repo for this: https://github.com/codecrafters-io/build-your-own-x It has a collection of blogs for building various small projects to learn different languages.

comment by rahuldan · 2023-01-17 · in Ask HN: Books that teach programming by building a series of small projects?

…well-written, step-by-step guides for re-creating our favorite technologies from scratch." [0] [0] https://github.com/codecrafters-io/build-your-own-x

comment by sasas · 2022-12-16 · in Ask HN: Similar books to “Raytracing in one Weekend”?

…I also saw interesting projects like implementing a compiler in Lisp, on `build-your-own-x` repo : https://github.com/codecrafters-io/build-your-own-x

comment by MielPopssss · 2022-11-07 · in Ask HN: Comment here about whatever you're passionate about at the moment

This was posted recently: https://github.com/codecrafters-io/build-your-own-x

comment by elcapitan · 2022-11-07 · in Building a BitTorrent client from the ground up in Go (2020)

…Based Learning https://github.com/practical-tutorials/project-based-learnin... * Build your own X https://github.com/codecrafters-io/build-your-own-x )

comment by asicsp · 2022-10-18 · in Projectbook – a free collection of 100 project ideas for learning

You may find this repo useful: https://github.com/codecrafters-io/build-your-own-x

comment by sumofsquares · 2022-08-28 · in Ask HN: Books Like Building Git?

They don't mind if you do it on your own for free: https://github.com/codecrafters-io/build-your-own-x > a compilation of well-written, step-by-step guides for re-creating our favorite technologies from scratch

comment by password4321 · 2022-08-05 · in Launch HN: CodeCrafters (YC S22) – Practice writing complex software

…redirect here? Or maybe the original author started codecrafters.io? Indication of change here: https://github.com/codecrafters-io/build-your-own-x/commit/6... when the (non)copyright changed a week ago. Here's what I remember seeing…

comment by eatonphil · 2022-07-19 · in Build Your Own X

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Build Your Own X

story by pretext · 2022-07-19 · 82 comments

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Build Your Own X

story by sudobash1 · 2022-07-13 · 0 comments

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Master programming by recreating your favorite technologies from scratch

story by olalonde · 2022-07-10 · 0 comments

https://github.com/donnemartin/system-design-primer https://github.com/codecrafters-io/build-your-own-x

comment by darthShadow · 2022-07-07 · in Ask HN: Resources on learning System Design (back end/data engineering)?

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Ask HN: CS grad who barely knows any CS

story by nevillain · 2022-06-14 · 106 comments