From Monolith to Modular: A Refactor Story

A surgical plan for safe, incremental decoupling.

The safest refactors begin with contracts. Freeze the surface, add adapters, and introduce new modules behind feature flags. Shadow traffic and compare results before cutover. Keep rollback plans and visibility into error budgets.
Refactoring is less about code and more about risk reduction. Done well, it unlocks velocity for years.

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