Reviewed three architectures this month where a 6-person team runs 12 services. Every one of them had:

Reviewed three architectures this month where a 6-person team runs 12 services. Every one of them had: • distributed transactions they didn't know they had • a shared DB anyway • a deploy pipeline more complex than the product A well-structured modular monolith (Spring Modulith is great for this) gets you 90% of the benefit. Split a service out when you have a real reason: different scaling, different team, different release cadence. Change my mind.