I think a model similar to git's "plumbing and porcelain" [1] could work well. [1] http://git-scm.com/book/en/v2/Git-Internals-Plumbing-and-Porcelain http://gi

I think a model similar to git's "plumbing and porcelain" [1] could work well. [1] http://git-scm.com/book/en/v2/Git-Internals-Plumbing-and-Porcelain http://git-scm.com/book/en/v2/Git-Internals-Plumbing-and-Por...