Shubham Kumar

Challenges

Build your own Docker

using Go

Learn about kernel namespaces, chroot, the registry API and more

completed

Build your own Claude Code

using JavaScript

Learn about LLM APIs, tool calling, agent loops and more

completed

Build your own SQLite

using JavaScript

Learn about SQL syntax, SQLite's file format, B-trees and more

2/9 stages

Build your own Git

using Python

Learn about git objects, plumbing commands and more

1/7 stages

Build your own Redis

using JavaScript

Learn about TCP servers, the Redis protocol and more

13/97 stages

Build your own DNS server

using JavaScript

Learn about the DNS protocol, DNS record types and more.

2/8 stages

Build your own HTTP server

using Python and JavaScript

Learn about TCP servers, the HTTP protocol and more

11/14 stages

Build your own BitTorrent

using Python and JavaScript

Learn about .torrent files, the BitTorrent Peer Protocol and more

9/19 stages

Build your own Interpreter

using JavaScript

Learn about tokenization, ASTs, tree-walk interpreters and more.

11/84 stages

Build your own Shell

using TypeScript

Learn about parsing shell commands, executing programs and more

12/50 stages

• Started the Build your own Shell challenge using TypeScript

• Completed the Build your own Claude Code challenge using JavaScript

• Started the Build your own Interpreter challenge using JavaScript

• Started the Build your own BitTorrent challenge using JavaScript

• Started the Build your own HTTP server challenge using JavaScript

• Started the Build your own DNS server challenge using JavaScript

• Started the Build your own BitTorrent challenge using Python

• Started the Build your own HTTP server challenge using Python

• Started the Build your own Git challenge using Python

• Started the Build your own Redis challenge using JavaScript

• Started the Build your own SQLite challenge using JavaScript

• Joined CodeCrafters