The News app is an RSS/Atom feed aggregator. It offers a RESTful API for app developers. The source code is available on GitHub
You can install it via the integrated app store browser in Nextcloud, News in the appstore.
The documentation can be found here, the source of the documentation is on GitHub
There are some small guides for dealing with common setup and issues.
Please read the appropriate section in the contributing notices
To receive notifications when a new News app version was released, simply add the following Atom feed in your currently installed News app:
https://github.com/nextcloud/news/releases.atom
Feed-io takes care of fetching feeds and processing them. alexdebril/feed-io