Multilanguage Plone 5 site

I want to add translations to a Plone 5 site.
I assumed alone.app.multilingual is the way to go, but it does not seem to have a 'language independent' setting like Lingualplone had.
Does this mean I need to translate all content (including images and files) or is there another option.

That is correct. The "only" thing you get at the moment is one shared "Media" folder.

For the record: https://github.com/plone/plone.app.multilingual#language-independent-fields

I wonder if you could just add another Language Independent Folder (probably at root level) for your purposes?