alirezasaremi.com logo

Alireza Saremi

Inside the Next.js Runtime

A deep dive into the inner workings of Next.js — exploring the runtime, Edge Rendering, and the architecture that powers the modern web. Written for intermediate to senior developers who want to truly understand how the framework works under the hood.

Inside the Next.js Runtime — Understanding the Edge book cover

About the Book

Inside the Next.js Runtime — Understanding the Edge is an in-depth exploration of the Next.js 15+ runtime model. It uncovers how React Server Components, Edge Functions, Middleware, and Caching Layers interact to deliver lightning-fast user experiences at scale.

Through practical breakdowns and conceptual diagrams, the book helps developers bridge the gap between high-level usage and low-level runtime behavior. You’ll learn how to design performant, maintainable, and edge-ready applications using modern best practices.

  • Understand how Server Components work behind the scenes
  • Master caching, data fetching, and revalidation on the Edge
  • Design scalable Next.js architectures for SaaS and AI products
  • Explore the future of React and the Web Platform convergence

Estimated release:

Why You’ll Love This Book

This isn’t another tutorial-style book. It’s a developer’s deep dive into how Next.js actually executes — ideal for engineers who build production-grade apps, design frameworks, or care about runtime performance, scalability, and architecture. Each chapter blends theory, visuals, and code examples to make even complex runtime concepts intuitive.