GroupArchitectureReplacing a system one route at a time, with a rollback at every step.October 20, 2026 · 8 min readFrom Monolith to Modular: Using the Strangler Fig Pattern Without Breaking ProductionA big-bang rewrite asks you to bet the business on one cutover weekend. The strangler fig lets you replace a system one route at a time, with a rollback plan at every step.