Hi,
I'm aware that setup.php can be used to guide a visitor to the right user/sites/$environment, but what about bin/grav new-project? It seems to symlink the Grav core files and create the user dependent dirs such as /backup, /user and /logs. To me that could be used to create Apache vhost dirs from a single Grav core instance. That way you only need to update a single instance, if I'm not mistaken.
So what's the general best practice to maintain a single Grav core instance while hosting multiple Grav websites with different templates and plugins?