Git Worktrees: Parallel Development Without Cloning Everything Twice

It’s 2026, and everyone is claiming to run parallel agents through one harness or another: Claude Code, Cursor, Aider, and whatnot. Still, I think we need to understand how these tools work underneath, and even use the same primitives ourselves in the old and boring way: manually. That was my experience with Git worktrees. I knew about them for more than 10 years, but only started using them seriously last year. ...

May 2, 2026 · 13 min