With Scriptoria, you can publish HTML or PWA content to websites. This involves declaring some Publishing Properties in Scriptoria App Builder and adding some products to your Scriptoria Organization configuration. See Publishing PWA and HTML for more details.
If you have multiple Book Collections in your app that you would like to publish, we have added a way to publish these to subdirectories of the publishing directory. We don’t do anything currently to connect them together, but you can publish them. To do that, you can specify multiple Book Collection IDs and the subdirectories they should go in. Example:
PUBLISH_HTML_COLLECTION_ID = CO1=web,C02=ulb,CO3=udb
The Publishing Properties documentation has been update for this new case.