Having not kept up to date with things while away, I stumbled across feedle last night:
A search engine for blogs and podcasts
The premise is that feedle checks a lot of public RSS feeds 1 and stores the updates in a searchable database. Queries against that database return a set of results that can also be consumed as an RSS feed itself 🤯 – subscribe to that and you'll get updates to your query.
"We want to lessen the burden of subscribing to hundreds of RSS feeds only to get a few items that are actually interesting to you. With feedle, you subscribe to a single RSS feed that brings in content from multiple sources matching your interests."
This is another excellent resource for blog discovery which I imagine I'll be using quite a bit.
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you can add your own if it's not already there – of course I have 😊 ↩