I build developer tooling for the AI era — CLIs, profilers, and benchmarks that make working with LLMs less painful and more predictable. Vibe coder using Claude Code and OpenAI Codex.
Challenges
Build your own Redis
using Python
Learn about TCP servers, the Redis 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 Python
Learn about parsing shell commands, executing programs and more
26/59
stages
Build your own grep
using Python
Learn about regex syntax: character classes, quantifiers and more
14/33
stages
Build your own Interpreter
using Python
Learn about tokenization, ASTs, tree-walk interpreters and more.
11/84
stages
Build your own Git
using Python
Learn about git objects, plumbing commands and more
2/7
stages
April 2026
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Started the Build your own Git challenge using Python
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Started the Build your own Interpreter challenge using Python
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Started the Build your own grep challenge using Python
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Started the Build your own Shell challenge using Python
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Completed the Build your own Claude Code challenge using Python
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Completed the Build your own Redis challenge using Python
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Joined CodeCrafters