[huherto]

I understand this point of view is contrary to popular opinion. The justification of microservices is to allow a team of let's say 10 developers to scale to 100. What you do is create 12 teams of 8. Each team owns their microservice with well defined APIs, and are allowed some flexibility on languages, tools, process, etc. Of course, it is a good idea to leverage common tools and such, but not obligatory.

Commonly we see a team of 20 maintaining 40 microservices, which becomes very difficult to manage and provides little gains. IMHO, this si the wrong approach. Microservices are tiny from the point of view of Netflix, or Amazon.