Nostr *is* basically a replacement for RSS, with a few different choices, so translating between the two should be easy.

Since a relay is sort of like a blog hosting platform, you could just have a relay that exposes an RSS endpoint (and possibly web interface) for every event it has — with comment threads and what not.

Conversely, you should be able to add a “trusted relay” to your rss feed and then the relay just fetches the feed and signs it with a key they generate for you.

You validate the pubkey in a way similar to NiP5 using domain verified keys.

Just spitballing here, haven’t really thought it through.

Don’t have time for implementing but would like to see it.

Maybe people would get pissed at a gazillion cross posts between the web and Nostr but I dont care