git worktree add ../foo-bugfix bugfix-branch checks out bugfix-branch into a separate directory, sharing the same .git history — no need to stash or switch branches in your main working copy.
This is useful when you need to run a long build or test suite on one branch while continuing to edit another, or when you want to compare behavior between two branches side by side without juggling stashes.
Remove a worktree when you’re done with it via git worktree remove ../foo-bugfix (or git worktree prune after manually deleting the directory).
git worktree add ../foo-bugfix bugfix-branch
git worktree list
git worktree remove ../foo-bugfix
