Return the articles in different formats than rss, i.e. JSON, ATOM, ..

[gildesmarais]

This will require a change in the html2rss gem as well.

This will help:
https://roda.jeremyevans.net/rdoc/classes/Roda/RodaPlugins/TypeRouting.html

[gildesmarais]

JSONfeed supported landed in html2rss and html2rss/web exposes them via api.