The "Folder Soup" Problem
When starting a React or Next.js project, teams usually group files by technical layers: putting all UI elements in a components/ folder, and all hooks in a hooks/ folder. Organizing by technical type works early on, but as applications grow: Business logic becomes scattered across unrelated folders. When you need to update the "User Authentication" feature, you end up hunting through half a dozen directories to find the relevant pieces.
At Smart Tech Devs, we architect our frontend systems for long-term maintainability. Feature-Sliced Design introduces a structured way to organize code based on business domains and responsibilities, not implementation details.
Architecting by Domain
In Feature-Sliced Design (FSD), the codebase is divided into vertical slices based on actual user value. The architecture relies on clear boundaries.






