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Why are people hyped about RSS regaining relevance?
(lemmy.world)
This is a most excellent place for technology news and articles.
Opening paragraph on Wikipedia explains it pretty well
still it doesn't clarify how I can use it, do I need separate plugin or a 3rd party software
You would need an RSS reader, and then you subscribe to the RSS feeds in the reader and it will automatically fetch and aggregate articles / posts / videos / whatever content that gets published. There are browser plugins to do it, separate applications, and even websites like feedly and bazqux that do it. If you're inclined you can even host your own RSS service with something like tt-rss or FreshRSS. Having a hosted service like feedly or bazqux or your own can be nice if you want access to your feeds on multiple device, with synchronization about which things you have already read / seen. I personally host my own FreshRSS instance and have connected to it with Reeder / Unread / NetNewsWire / Newsflash / the web interface.
An RSS feed is really just a simple file hosted on a website that basically just lists new content. RSS feed readers basically just automatically check these lists for updates. It's pretty simple, but it's really nice for subscribing to things you actually care about.
NetNewsWire is the client I recommend, if you’re on a platform that supports it. Feedly is pretty good and easier to get started with since it has a search index for various feeds