The Podcast App can have many channels, and each one can have description and metadata as follows:

1. Title
2. Description
3. Image (cover - file ca. 1000px to 3000px square)
4. not now: Tags
5. License (dropdown)
6. Language [like "en-us" etc.]
7. Owner
8. Categorization [todo]

Note that other aspects are automatically provided like

1. GUID [the channel entity guid]
2. Link [the current page]
3. RSS-URL [a sub-view of the current page]
4. Generator ("2sxc PodCast App")

Note: the specs we believe would be relevant for the RSS feed can be found here. See also the feed template found here.