#git
Version control: it records the history of your code so you can see what changed and go back. Full definition →

Claude Code: Pro Level
Claude Code worktrees: run parallel sessions without collisions
Two Claude Code sessions in one folder edit the same files and trip over each other. claude --worktree gives each session its own working copy on its own branch. Here is how to prepare a project, the trap with unpushed commits, and how to bring the work back.

Claude Code: Pro Level
The Claude Code practicum on GitHub: 14 hands-on tasks with automatic checks
A free, open practicum for the Claude Code: Pro Level course: 14 tasks on a small real project that you do in your own terminal with the real Claude Code, while npm run check tells you what passed. Finish all 14 and you get a code for the Claude Code Practitioner badge.