Why One Tech Team Chose Webpack Module Federation for Enterprise Microfrontends

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A software engineering team has published a multi-part series detailing the architecture of a real enterprise microfrontend platform built using Webpack 5 Module Federation. The core requirement driving the design was enabling any team to deploy changes independently, without triggering a rebuild or redeployment of the central Host application. To achieve this, the Host loads a runtime manifest file that maps page routes to remote bundle URLs, meaning adding or updating a team's page requires only a manifest entry change. Shared dependencies such as React and the design system are declared as singletons, ensuring all microfrontends use the same running instance rather than separate copies. The first installment focuses on why Module Federation was selected over two other viable alternatives, with subsequent parts covering auth, CI/CD, and safe manifest updates.

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