Master programming by recreating your favorite technologies from scratch.
Markdown 550k 51.7k
Companies that support engineers with learning stipends
423 39
Definition for the redis challenge.
Shell 366 84
Definition for the sqlite challenge.
Shell 156 39
Definition for the git challenge.
Definition for the dns-server challenge.
Rebuild complex systems from scratch
Language dashboard for CodeCrafters challenges.
A rewrite of course-sdk, with better developer ergonomics
Tester for the claude-code challenge.
Definition for the claude-code challenge.
Definition for the shell challenge.