Rssguard: Feed reader now also with XMPP pubsub support

https://slrpnk.net/post/36243014

Rssguard: Feed reader now also with XMPP pubsub support - SLRPNK

Lemmy

RSS Guard includes basic support for the XMPP PubSub protocol, allowing it to fetch real-time ATOM entries.

What does this allow to do? What’d be a use-case? Does that add something over other feed readers that’d be advantageous?

XEP-0060: Publish-Subscribe

Basically it allows reading blogs and such made with Movim and similar XMPP based blogging platforms.
Movim – Responsive web-based cross-platform XMPP client

Movim is a kickass distributed blogging and messaging platform built on the industry-standard XMPP protocol

Is there any good explanation about what PubSub is and what I can do with it?

I could read the XEPs, of course, but I’d prefer seeing what it can do over finding use-cases by reading specs.

It is many things. Basically a way to store some XML documents on the xmpp server and allow subscription to them. It is used for a lot of background stuff in XMPP whenever you want to store some structured data on the server.