On the server:

conf/MANIFEST
   - the central entry point
   - is a shell script
   - defines mapping from modules or providers to hosts
   - can call other MANIFESTs in modules
   -  will be called by $whatever and relative path
      will be setup for source tracking:

conf/providers/<modname>/
   - provide standard types
   - may make use of other providers to realise a new type
      - how to overwrite stuff?
      - overwrite in own tree?
         - needs knowledge of inherited provider
            - similar to current situation in puppet,
              but more like reusable defines
   - or may implement some functionality on their own

conf/modules/<modname>/
   - configuration put together
   - needed additionally to providers?
   - perhaps as singletons / objects of class?

Cached client: ???????
   Has generated file, which will be (re-)applied