Do you mean distributing your own podcast, or finding podcasts to listen to?
@switchingsocial distributing own ones :>
Funkwhale is part of the Fediverse too, it federates with activitypub.
For auto-generation, I can recommend Grav (http://getgrav.org) and its blog and RSS/Atom plugins. It creates an RSS and Atom feed for whatever you post. It's pretty self-contained, flat-file CMS.
The trick is promoting. How do you tell the world that your feed exists? I post alerts to Mastodon, and submitted my feed to podcast "networks", like https://www.blubrry.com (which basically just tells some other website to ping your feed every week for update). I'm disinterested in tracking people and traffic, so no idea how effective this is or how many listeners I have.
For people involved in the activities of the World Wide Web Consortium (W3C), in Working Groups or Community Groups, and people who follow the work of the W3C. Run on a volunteer basis by Sandro Hawke and others, NOT the W3C systems team, and NOT supported by W3C. Uses the W3C Code of Ethics and Professional Conduct. A place to talk online about the things you would talk about in a meeting, or at a meal with your group. We plan to have a relay-bot soon, so don't feel like you need an account here to be a member of this online community. Please post things you think the W3C community might find interesting!