Don't break up your frontend because it's trendy. Do it because your organization structure demands it (Conway's Law).
The Problem: The Frontend Monolith
As your team grows to 50+ engineers, a single Next.js app can take 20 minutes to build. Merging becomes a nightmare of conflicts.
Module Federation
Webpack 5 introduced Module Federation, which allows a JavaScript application to dynamically load code from another application at runtime. Team A can deploy the "Checkout" app, and the main "Shell" app updates instantly without a redeploy.
State Sharing Challenges
The hardest part isn't the loading—it's the data. How do you share the "User" state between micro-frontends? We recommend a lightweight pub/sub model or using custom window events rather than trying to couple them to a shared Redux store.
#MicroFrontends#Webpack#Architecture#Scale