We were able to make language screenshots for VisualEditor (T64737) but since the code is Ruby , it was a constant struggle to fix the failures (T119482). If the tool was ported to JavaScript using Malu, more people would be able to fix the failures, including VisualEditor team.
We have a working tool in Ruby and it should not be hard to port it to JavaScript during Wikimania-Hackathon-2016. I have talked with @Amire80 and he is interested. I think @Ryasmeen would be interested too.
Next step: @Amire80 should contact people/teams that would be using the tool and ask them to join us at the hackathon.