I love the idea of owning my own feed very much. These days it feels like a local and/or private LLM that had some web crawling ability would be able to do a better job than RSS.

That seems like such an obvious project that someone's working on it, but the trick is that I would NOT subject myself to a monetized AI that is injecting content into my eyeballs that isn't in my best interest. So it's not necessarily something that fits current models of "the user is the product".