Creating a requirements-only app for custom objects

Hi,

Right now, is it possible to create a requirements-only app for custom objects? I know it was possible for the old version of custom objects (and the documentation still says that is possible for legacy custom objects https://developer.zendesk.com/documentation/apps/app-developer-guide/apps_requirements/#legacy-custom-object-app-requirements), but there is nothing about the new ones. Is that functionality in the road map?

Thanks.