We used to develop our application as a single DDD monolith (let’s call it the mother) with several smaller microservices around it (the children) to gain some specific advantages. Most of these microservices were built in Go, while the core monolithic service was developed in PHP 8.3.This stack served us well for a long time. The Go microservices efficiently handled our high-throughput requests, and the carefully designed monolith allowed our relatively small backend team to deliver features qu...