Distribute configuration to several sites
So .. found more details on it.

With 
drush config-list | grep news  I can get all configurations that are named with news. Those can be exported into a Module / YAML file and moved to another installation, or rather copied and enabled.

More information on that: http://nuvole.org/blog/2014/jul/15/packaging-and-reusing-configuration-drupal-8

So that would make Features in D8 quite unnecessary - depending on the use case, very good.

It might be reasonable to use config-merge but I'm not sure about:
If I'd do a Full Export, I'd only be able to use this on Cloned sites (like Staging/Live). But in my case I'd do an initial clone or a profile and would only like to pass on functionality (like features) and that might not work with config-merge?