you can use https://git-scm.com/docs/git-worktree to have many "views" of a single git repo.

For more complex environments, use multiple VMs (common to have large VMs running in AWS/GCP for development and only use your laptop or phone as a thin client)

I don't follow, so these people using 8 claude codes in parallel, they have 8 git worktrees? and 8 devservers listening on 8 ports?

or 8 VMs? won't syncing be super slow there? like i believe it, but it feels like a lot of setup and i don't understand why nobody seems to be talking about it.