This. For languages with a good module system, it's almost trivial to use modules either in-process (e.g., monolithically), or out-of-process exposed via HTTP o

This. For languages with a good module system, it's almost trivial to use modules either in-process (e.g., monolithically), or out-of-process exposed via HTTP or some other network interface (as microservices). Then the discussion becomes about writing modular code rather than microservices.