July 12, 2025 1 min read

Next.js Layouts and Route Groups: Nested UI Architecture

Tutorial

Depth: ●●○○○

Master Next.js layouts for persistent UI, route groups for organization, and nested layouts for shared state. Patterns from building my portfolio architecture.

Summary: Next.js Layouts, Route Groups, and Nested UI

Layouts wrap pages, persist across navigation, and can fetch data once for all child routes.

Root layout (app/layout.tsx) is responsible for:

Global HTML structure (<html>, <body>)

Global CSS and fonts