Andy Li

Challenges

Build your own Git

using Java and Python

Learn about git objects, plumbing commands and more

completed

Build your own SQLite

using C++

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

completed

Build your own Kafka

using Go

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

completed

Build your own HTTP server

using Python and Go

Learn about TCP servers, the HTTP protocol and more

completed

Build your own DNS server

using Go, Rust and Python

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

completed

Build your own Shell

using Python

Learn about parsing shell commands, executing programs and more

completed

Build your own BitTorrent

using C++

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

completed

Build your own Dummy

using Python

Add a short description for your course here.

0/6 stages

Build your own Interpreter

using Kotlin, JavaScript, Java, C#, Gleam, Go, Rust, Zig, C, Python, C++, TypeScript and OCaml

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

54/84 stages

Build your own Redis

using Kotlin, JavaScript, Ruby, Rust, Scala, Gleam, Go, C++, C#, OCaml, Java, C, TypeScript, Haskell, Python, Zig and Clojure

Learn about TCP servers, the Redis protocol and more

54/55 stages

Build your own grep

using JavaScript, PHP, C++, C#, Python and Java

Learn about regex syntax: character classes, quantifiers and more

10/15 stages

• Started the Build your own BitTorrent challenge using Ruby

• Started the Build your own Redis challenge using Clojure

• Started the Build your own Interpreter challenge using OCaml

• Started the Build your own Interpreter challenge using TypeScript

• Started the Build your own SQLite challenge using Elixir

• Started the Build your own HTTP server challenge using C#

• Started the Build your own HTTP server challenge using Haskell

• Completed the Build your own HTTP server challenge using Go

• Started the Build your own BitTorrent challenge using C

• Started the Build your own BitTorrent challenge using Haskell

• Started the Build your own DNS server challenge using Zig

• Started the Build your own Git challenge using Zig

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

• Started the Build your own Interpreter challenge using Zig

• Started the Build your own Shell challenge using Gleam

• Started the Build your own DNS server challenge using TypeScript

• Completed the Build your own Git challenge using Java

• Completed the Build your own Shell challenge using Python

• Completed the Build your own BitTorrent challenge using C++

• Started the Build your own Kafka challenge using C#

• Started the Build your own HTTP server challenge using Zig

• Started the Build your own HTTP server challenge using C

• Completed the Build your own DNS server challenge using Rust

• Started the Build your own BitTorrent challenge using TypeScript

• Started the Build your own HTTP server challenge using C++

• Started the Build your own HTTP server challenge using Rust

• Started the Build your own Shell challenge using C#

• Started the Build your own Redis challenge using Scala

• Started the Build your own Shell challenge using TypeScript

• Started the Build your own Shell challenge using JavaScript

• Started the Build your own Shell challenge using Kotlin

• Started the Build your own Shell challenge using PHP

• Started the Build your own Git challenge using JavaScript

• Completed the Build your own Kafka challenge using Go

• Started the Build your own Shell challenge using Zig

• Started the Build your own grep challenge using C#

• Started the Build your own Interpreter challenge using C#

• Started the Build your own Shell challenge using Rust

• Started the Build your own grep challenge using PHP

• Started the Build your own Shell challenge using Go

• Started the Build your own HTTP server challenge using JavaScript

• Started the Build your own Redis challenge using C

• Started the Build your own Shell challenge using Java

• Started the Build your own Shell challenge using Ruby

• Started the Build your own Interpreter challenge using Gleam

• Completed the Build your own Git challenge using Python

• Started the Build your own HTTP server challenge using TypeScript

• Started the Build your own Git challenge using Ruby

• Started the Build your own DNS server challenge using C++

• Started the Build your own Redis challenge using Zig

• Started the Build your own Kafka challenge using Java

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

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

• Started the Build your own Interpreter challenge using Java

• Started the Build your own Redis challenge using Haskell

• Started the Build your own DNS server challenge using Java

• Started the Build your own Git challenge using Go

• Started the Build your own Interpreter challenge using JavaScript

• Started the Build your own Interpreter challenge using C

• Started the Build your own Git challenge using C

• Started the Build your own Interpreter challenge using Kotlin

• Started the Build your own Git challenge using TypeScript

• Started the Build your own SQLite challenge using Rust

• Started the Build your own Git challenge using Rust

• Started the Build your own SQLite challenge using JavaScript

• Started the Build your own SQLite challenge using Go

• Started the Build your own BitTorrent challenge using Rust

• Started the Build your own BitTorrent challenge using C#

• Started the Build your own grep challenge using Java

• Started the Build your own Redis challenge using TypeScript

• Started the Build your own BitTorrent challenge using Go

• Completed the Build your own DNS server challenge using Go

• Started the Build your own Kafka challenge using Rust

• Started the Build your own Kafka challenge using Python

• Started the Build your own Dummy challenge using Python

• Started the Build your own Redis challenge using Gleam

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

• Started the Build your own Shell challenge using C

• Started the Build your own Kafka challenge using JavaScript

• Started the Build your own grep challenge using JavaScript

• Started the Build your own Redis challenge using OCaml

• Started the Build your own Redis challenge using Rust

• Started the Build your own Redis challenge using Kotlin

• Started the Build your own Redis challenge using Java

• Started the Build your own Redis challenge using JavaScript

• Started the Build your own Redis challenge using Ruby

• Started the Build your own BitTorrent challenge using JavaScript

• Started the Build your own SQLite challenge using Kotlin

• Started the Build your own SQLite challenge using Java

• Started the Build your own Interpreter challenge using Rust

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

• Started the Build your own BitTorrent challenge using Java

• Started the Build your own Redis challenge using C#

• Started the Build your own SQLite challenge using Gleam

• Started the Build your own HTTP server challenge using Java

• Started the Build your own Redis challenge using Go

• Started the Build your own Interpreter challenge using Go

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

• Started the Build your own BitTorrent challenge using Python

• Started the Build your own SQLite challenge using Python

• Started the Build your own grep challenge using Python

• Started the Build your own Interpreter challenge using Python

• Started the Build your own Redis challenge using Python

• Completed the Build your own DNS server challenge using Python

• Completed the Build your own HTTP server challenge using Python

• Joined CodeCrafters