Explain how it works or what it is?

It’s just a feed you can follow (think of following someone on IG or twitter). You’ll get notified about the new content on that feed.

You can subscribe to all the feeds that are interesting to you and now you have a place to read the all and get notified when something new is out.

I don’t have ig or teitter

Imagine you had a feed like Lemmy’s home feed, where things from the places you follow show up in a single feed you can look through and open the items you want to read.

Sites used to publish an RSS feed of everything they posted. GReader was the king like 10 (omfg, 20?) years ago. They they fucking killed it like they do with all their good, non-mail/YouTube projects.

But I’m sure you get the gist

Someone can publish a list of updates in a computer-friendly XML format at a given URL.

An RSS client polls it periodically for updates, maybe notifies a the client’s user when new updates show up, tracks which they’ve viewed.

Some people use it to provide notifications when their blog has new entries. Some to notify about new podcast episodes. I’ve seen it used to provide notifications of new BitTorrents being started on a tracker.

See every update from the websites you want updates from without trusting an algorithm to surface them to you.