As systems grow, the “one repo per microservice” pattern can lead to significant overhead: dependency hell, fragmented CI/CD, and difficulty in cross-service refactoring. Migrating to a monorepo often becomes the logical next step for many engineering teams.

Monorepo Migration

The biggest technical challenge during this migration is preserving the commit history of each individual service. You don’t want to just copy files; you want to bring the years of context, bug fixes, and development history with them.