I'd love to be able to use Granary to generate a podcast feed from an h-feed instead of having to do that myself! Some examples that would make great podcast feeds:

• https://martymcgui.re/tag/this-week-indieweb-podcast/
• https://aaronparecki.com/tag/100daysofmusic

There are a few requirements for podcast feeds beyond traditional RSS feeds. It's a bit of a trick to get it right. If this sounds like it'd be doable I'd happily help document everything needed and how it could be parsed from the h-feed.