This gives me an idea. Use git to manage versions of the static files. Use [git worktree][1] to have multiple separate working trees in different directories.

This gives me an idea. Use git to manage versions of the static files. Use [git worktree][1] to have multiple separate working trees in different directories. Use [openat()][2] in your app whenever serving a request for a static file. On each request, open the directory, i.e. `/var/www/mysite.com`, and then use `openat()` with the directory's file descriptor when looking up any files under that directory. `/var/www/mysite.com` is a symbolic link to some working tree. When modifying the site, make modifications to the git repository. Then check out the modified working tree into a new directory. Create a symbolic link to the new directory and `mv` (rename) it to `/var/www/mysite.com`. Then some time later, `rm -r` the old working tree. [1]: https://git-scm.com/docs/git-worktree https://git-scm.com/docs/git-worktree [2]: https://pubs.opengroup.org/onlinepubs/9799919799/functions/open.html https://pubs.opengroup.org/onlinepubs/9799919799/functions/o...