Challenges
Build your own HTTP server
using Rust
Learn about TCP servers, the HTTP protocol and more
completed
Build your own Claude Code
using Python
Learn about LLM APIs, tool calling, agent loops and more
completed
Build your own Shell
using Rust
Learn about parsing shell commands, executing programs and more
22/50
stages
Build your own Interpreter
using Rust
Learn about tokenization, ASTs, tree-walk interpreters and more.
52/84
stages
March 2026
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Completed the Build your own Claude Code challenge using Python
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Completed the Build your own HTTP server challenge using Rust
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Started the Build your own Interpreter challenge using Rust
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Started the Build your own Shell challenge using Rust
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Joined CodeCrafters