Dirk Hünniger, 28/09/2017 16:30:
What about making the export to those formats available to wider public.
Can we eventually bring these abandoned features back to the book
creator. Could I help in such an effort.
This is important, but I don't understand whether the Labs instance you
linked is a server which can be used by any MediaWiki wiki as renderer
for the Collection extension ($wgCollectionMWServeURL).