Provide new 'cwd' option during deploy

I don't really understand how to use Naught in a robust way for new deploys. My current deploy script has a git post-receive hook that brings the old server down and a new server up; if the new server fails, it will rollback and bring the old server back up. One thing I'd like to do with Naught is provide new CWDs in a deploy and then periodically check the health of the new deploy and switch back to the old CWD if necessary. What I'll do for now is symlink a directory and point Naught to that, but this seems strange.