[imajes]

What is the value proposition of tieing an ingester, parser, transactional service (e.g. all written with go), and then tieing together your api, client app, mobile app (all in js), just because they share a common language?

arguably they aren't close to each other in tiers of the stack, and don't really overlap. The sorts of libraries you might choose to use to do something could differ, (e.g. json processing - in the front end, you'd pick usability and security over a lower level more optimized transcoder for the api).

That said, I agree with your core premise- not understanding, and chasing a nail with a hammer, but geekily named repos per language just sounds like someone who doesn't understand how something git works...