Challenges

Build your own BitTorrent

using Rust

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

completed

Build your own HTTP server

using C and Rust

Learn about TCP servers, the HTTP protocol and more

completed

Build your own grep

using Rust

Learn about regex syntax: character classes, quantifiers and more

completed

Build your own Shell

using Rust and C

Learn about parsing shell commands, executing programs and more

43/76 stages

Build your own Git

using C

Learn about git objects, plumbing commands and more

3/7 stages

Build your own Interpreter

using Rust

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

8/84 stages

Build your own Claude Code

using Rust

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

3/6 stages

Build your own Kafka

using Go

Learn about TCP servers, the Kafka wire protocol and more.

7/25 stages

Build your own DNS server

using C and Rust

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

2/8 stages

Build your own SQLite

using Rust and C++

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

1/9 stages

Build your own Docker

using C and Rust

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

0/6 stages

Build your own Redis

using Rust, Gleam and Odin

Learn about TCP servers, the Redis protocol and more

28/115 stages

• Started the Build your own Redis challenge using Odin

• Started the Build your own SQLite challenge using C++

• Started the Build your own grep challenge using C++

• Started the Build your own HTTP server challenge using Go

• Started the Build your own Kafka challenge using Go

• Started the Build your own BitTorrent challenge using Elixir

• Started the Build your own Redis challenge using Gleam

• Completed the Build your own HTTP server challenge using Rust

• Started the Build your own DNS server challenge using Rust

• Completed the Build your own BitTorrent challenge using Rust

• Started the Build your own Claude Code challenge using Rust

• Started the Build your own Interpreter challenge using Rust

• Started the Build your own DNS server challenge using C

• Started the Build your own Git challenge using C

• Completed the Build your own grep challenge using Rust

• Started the Build your own grep challenge using C

• Started the Build your own Shell challenge using C

• Started the Build your own SQLite challenge using Rust

• Completed the Build your own HTTP server challenge using C

• Started the Build your own Shell challenge using Rust

• Started the Build your own Redis challenge using Rust

• Joined CodeCrafters