Updated to Bookstack 0.24 and it seems nice
They added Bookshelves and allow you to set the /Books path as the homepage.
Among other updates.
This was released in September, but I just got to it.
If you followed my original guide, the update process is simple.
cd /var/www/html/bookstack/ sudo -u apache git pull origin release sudo -u apache composer install sudo -u apache php artisan migrate
What an awesome feature.