Advanced React in the Wild
Production Case Studies from Ambitious Web Projects (2022–2025)
Hey everyone!
We’re happy to share the release of our newest write-up: Advanced React in the Wild 🎉. This technical analysis compiles production case studies from ambitious web projects like Vio, DoorDash, Preply, GeekyAnts, and Inngest!
For anyone working with React and Next.js, this collection offers practical, actionable insights from engineering teams who’ve pushed the envelope on performance, user experience, and developer productivity.
🔍 What’s Inside the Write-Up?
The write-up dives deep into real-world implementations of advanced React and Next.js techniques across multiple high-traffic applications from 2022-2025. The write-up brings together lessons from engineering teams that have tackled and solved complex challenges in modern web development, such as:
Performance optimization strategies — How teams like Vio dramatically improved Interaction to Next Paint [INP] (from 380ms to 175ms) and DoorDash enhanced Largest Contentful Paint [LCP] by 65% through methodical profiling and targeted fixes.
The evolution of rendering approaches — Real examples of migrating from CSR to SSR/SSG, adopting React Server Components, and finding the ideal balance for different use cases.
Developer experience improvements — How Next.js App Router and modern tooling made codebases more maintainable and developer workflows more efficient.
Core Web Vitals optimization — Practical techniques for improving LCP, INP, and other metrics directly impacting business outcomes.
🔗 You can read the write-up at largeapps.dev/case-studies/advanced.
We’re happy to share this write-up with you and hope it provides valuable insights for your projects. As always, we’d love to hear your thoughts, feedback, or any questions you may have—just reply to this email.
Remember to share this write-up with your colleagues and friends or on your social media to help others discover it, too!
Catch you soon,
Addy & Hassan
P.S. We’re currently working on our next major installment for the Building Large Scale Web Apps series. We’ll be sharing some exciting updates in the coming weeks and months. Stay tuned! 🤖 🦖
This book is great literally.
❤️ your effort.