Take a look at delta.chat
Your server can be a traditional email server you set up or one of their optimised devocot, smtp relays: https://github.com/chatmail/relay
> I'm thinking of something like "algorithm as a service," which would be aligned with your interests and tuned for your personal goals.
RSS is just a protocol. You could make a reader now with any algorithm you want that displays feeds.
In fact, I can’t imagine that no one is using the AI boom to say they will build a decentralized Twitter using rss plus ai for the algorithm
"Programmers waste enormous amounts of time thinking about, or worrying about, the speed of noncritical parts of their programs, and these attempts at efficiency actually have a strong negative impact when debugging and maintenance are considered. We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. Yet we should not pass up our opportunities in that critical 3%."
- Donald Knuth
Start with a gsheet, when it breaks build something else.