Next.js

Next.js assumes React comfort, so you should know components, hooks, and state well.

Next.js routing is file-system based, so each folder becomes a route — simpler and clearer.

Smooth navigation without full reloads is what makes your app feel like a real app.

Understanding Server vs Client Components is the single most important concept in modern Next.js.

Next.js lets you fetch data on the server directly, reducing code and improving performance.

Picking the right rendering strategy per page balances speed, data freshness, and SEO.

Server Actions let you write backend logic inside components without building a separate API.

When you need a real API (webhooks, mobile clients), route handlers give you ready endpoints.

Next.js supports multiple styling options and auto-optimizes images and fonts for performance.

Most real apps need login, and understanding sessions and security is essential for serious projects.

Next.js's caching system is powerful but confusing — mastering it makes a fundamental performance difference.

Next.js excels at SEO, and proper metadata makes your pages shine in search and social shares.

Tests protect your app from breaking as you develop, especially with mixed server/client logic.

Deploying Next.js right unlocks its full feature set, from edge rendering to serverless functions.