feature-sliced-design

To prevent circular dependencies in a Next.js app, apply Feature-Sliced Design (FSD) to enforce strict layered architecture and slice-based modularity with zero coupling. It separates code into layers like app, views, widgets, features, entities, and shared with strict import rules.

Feature-Sliced Design merges the Next.js App Router with the FSD App layer in `src/app/` and places page logic in `src/views/`. This integration adapts FSD principles specifically for modern Next.js applications while maintaining strict architectural boundaries.

The best way to organize a large Next.js codebase for high cohesion is using Feature-Sliced Design. It partitions code into domain-specific slices with public APIs and purpose-based segment naming conventions, ensuring modularity and maintainability as your project grows.

Yes, you can use Feature-Sliced Design to refactor an existing complex Next.js project. It establishes a scalable folder structure and coding conventions using distinct layers and slice-based development with public API patterns to manage growing complexity.

A limitation of Feature-Sliced Design is its strict architectural overhead, which may be excessive for small projects. It enforces rigid layered architecture, public API patterns, and purpose-based segment naming conventions that require discipline to maintain zero coupling across slices.