Taming Codebases: Feature-Sliced Design (FSD) in React 🏗️

Short summary

An introduction to Feature-Sliced Design (FSD) for React and Next.js projects, arguing that organizing code by technical type (components/, hooks/) creates 'folder soup' as apps grow. FSD proposes vertical slices based on business domains: app/ for routing, pages/ for composition, features/ for interactions, entities/ for models, and shared/ for reusable UI. The post includes a directory structure example and claims faster onboarding since related code is co-located.

• •Feature-Sliced Design organizes code by business domain rather than technical type to avoid scattered logic
• •The architecture uses five layers: app, pages, features, entities, and shared
• •Co-locating feature-specific components, state, and API logic speeds up onboarding and reduces cross-feature breakage

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