A beginner developer who wants to understand how things work under the hood.
Challenges
Build your own Claude Code
using Python
Learn about LLM APIs, tool calling, agent loops and more
0/6
stages
Build your own Shell
using C
Learn about parsing shell commands, executing programs and more
9/76
stages
July 2026
-
Started the Build your own Claude Code challenge using Python
-
Started the Build your own Shell challenge using C
-
Joined CodeCrafters