How Vercel adopted microfrontends

Vercel, a platform for deploying and hosting web applications, has successfully implemented microfrontends to improve developer velocity while maintaining smooth user experience. By shifting from a single large Next.js application serving both website visitors and logged-in users, Vercel adopted vertical microfrontends, leading to a 40% improvement in preview build times and local development compilation. This approach also streamlined dependencies, reduced page weight, and boosted end-user performance. The company leveraged Turborepo for optimizing tasks and used Next.js Multi-Zones feature to support vertical microfrontends. Vercel's adoption of microfrontends has greatly improved developer velocity and cut build times, enabling teams to work more independently while staying aligned through shared packages.