[spacephysics]

This I feel is the ideal way in many many cases. Only separate out components if the additional cost of service communication (when moving the component away from a monolith) is less than the benefits of scaling/separate repo/etc.

Cost also includes the orchestration and such

[sn0wf1re]

I'm personally a fan of the mono-microlith (or whatever people call it), where you compartmentalize the monolith so that it's a just a flag of what "micro-services" are enabled on each instance. Easy to scale down on a dev machine (one process) and easy to scale out, the local procedure calls just become remote procedure calls (over HTTPS or whatever).