Thanks to Alberto Paro elastic search streams and source/target nodes were added to Brewery. Pull request was merged, with some contributed code clean-up as well.
Currently it is part of the core framework with "weak dependency", that means that you do not have to have pyes (elastic search for python) package installed to use brewery, but you will get "friendly" exception with instructions (with package name and project URL) when you will try to use it and the dependency is not met.
As Alberto suggested, brewery needs some module management. I agree.
data analyst and data brewmaster