[preordained]

That's cool...but won't lie, I get the "Microservices" vibe reading this: https://youtube.com/watch?v=y8OnoxKotPQ

[marginalia_nu]

The microserviceness is very much a conceit in order to deal with an application state that is several terabytes with stateful processes that have run-times counted in weeks. That imposes constraints that are hard to satisfy without a fairly modular system, at least if there is any intention to upgrade the system regularly.