From monolith to microservices without stopping the business

Rewriting a critical system all at once is a recipe for disaster. The strangler pattern proposes the opposite: extract capabilities incrementally until the monolith is no longer needed.

We identify the domains with the least coupling and the most value, and extract them first. Each microservice deploys independently, with its own lifecycle.

Kafka acts as the nervous system: services communicate asynchronously, which reduces coupling and enables auditing and resilience.