It would just need the ability to show 30023, 30024, 30040 and 30041 events. And maybe allow for highlighting/quoting/replying to those notes and some nice book and article navigation, and publishing 30023s and 30040s (including their linked/embedded notes) as ePub or PDF.

So, if someone writes a 30040 with the metadata "title: Anne of Green Gables, author: L.M. Montgomery" and then listed 30023s and/or 30041s as content, the script would just use the 30040 as the index page required for the ePub and pull in the content of the linked articles.

We're already publishing books under the new events, so anyone who build a client for it would have immediate, high-quality content and grateful users.