A Practical Full-Stack Architecture for Production Apps (React, Next.js, Node.js & Express) Every "how to build a full-stack app" tutorial online teaches you how to build a to-do list. Almost none of them teach you what to do when that to-do list turns into a real product with real users, real auth, real edge cases, and a client asking "can we add X" every second sprint. This is the architecture pattern we default to when building production web apps with React, Next.js, Node.js, and ...