Have you considered coracle's custom feeds? It allows for incorporating dvms without relying entirely on them. Feeds can also be saved, shared, and bookmarked, creating a marketplace of feeds.
Discussion
I looked for this previously on Wikifreedia as you suggested, but couldn't find it. 😅
It does look interesting. It would be great if we could come up with a standard feed spec. DVMs are more general and could be useful for feeds. Let's talk more. You going to Riga?