One problem I've been having is not all the tools support automatically copying .env files into worktrees. All of them support running a setup script however. Copying a bash snippet to do the copying was getting tedious - so I've put together a small tool/git extension to solve my problem.
$ cd ~/repos/myproject # primary worktree, has .env
$ git worktree add ~/worktrees/my-feature # create a linked worktree
$ cd ~/worktrees/my-feature
$ git env sync # copy .env from the primary
synced .env
1 files synced, 0 unchanged, 0 conflicts skipped
Sharing in case it solves anyone else's problem[1] https://www.conductor.build/ [2] https://emdash.sh/ [3] https://github.com/imbue-ai/sculptor [4] https://superset.sh/