The News app is an RSS/Atom feed aggregator. It offers a RESTful API for app developers. The source code is available on GitHub
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
Please consider donating to the developer of the RSS parser that powers the Nextcloud News App: https://github.com/sponsors/alexdebril