I've got some news! I created an open source library for generating Podcasting 2.0 RSS feeds.
You can check it out here: https://gitlab.com/caproni-podcast-publishing/pod2gen
Any feedback is appreciated :)
Founder and main developer behind caproni.fm, a podcast publishing platform. Host of the negociosonline.fm podcast.
Intended for all stake holders of podcasting who are interested in improving the eco system