Leo Kovačević

Challenges

Build your own grep

using TypeScript

Learn about regex syntax: character classes, quantifiers and more

completed

Build your own Kafka

using TypeScript

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

completed

Build your own HTTP server

using TypeScript

Learn about TCP servers, the HTTP protocol and more

completed

Build your own DNS server

using TypeScript

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

completed

Build your own Git

using TypeScript

Learn about git objects, plumbing commands and more

completed

Build your own SQLite

using TypeScript

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

completed

Build your own BitTorrent

using TypeScript

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

completed

Build your own Redis

using TypeScript

Learn about TCP servers, the Redis protocol and more

completed

Build your own Claude Code

using TypeScript

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

completed

Build your own Shell

using TypeScript

Learn about parsing shell commands, executing programs and more

50/59 stages

Build your own Interpreter

using TypeScript

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

0/84 stages

• Started the Build your own Interpreter challenge using TypeScript

• Completed the Build your own Claude Code challenge using TypeScript

• Completed the Build your own Redis challenge using TypeScript

• Completed the Build your own grep challenge using TypeScript

• Completed the Build your own Kafka challenge using TypeScript

• Started the Build your own Shell challenge using TypeScript

• Completed the Build your own Git challenge using TypeScript

• Completed the Build your own DNS server challenge using TypeScript

• Completed the Build your own SQLite challenge using TypeScript

• Completed the Build your own HTTP server challenge using TypeScript

• Completed the Build your own BitTorrent challenge using TypeScript

• Joined CodeCrafters