
5/15/2025
What this post added
This post details how Fern built a multi-tenant documentation platform on Vercel, leveraging Vercel Middleware for dynamic routing and custom domain support. It also highlights the migration of backend services to Vercel Functions, reducing deploy times from 30 minutes to 5 minutes, and the performance improvements gained from migrating to Next.js App Router, including 50-80% faster load times and 3x faster time to first byte.