Next.js 14 introduces some exciting new features and improvements, particularly around the App Router. In this article, we'll explore how to get started with building modern web applications.

## What's New in Next.js 14?

Next.js 14 brings several improvements:

- **Improved Performance**: Faster local server startup and faster code updates
- **Turbopack**: Now more stable and ready for development
- **Server Actions**: Stable and production-ready
- **Partial Prerendering**: Preview of a new rendering model

## Setting Up Your First Project

To create a new Next.js 14 project, run:

```bash
npx create-next-app@latest my-app
```

Choose the App Router when prompted. This will give you access to all the latest features.

## Understanding the App Router

The App Router is built on React Server Components, providing:

- Automatic code splitting
- Streaming and Suspense support
- Built-in loading and error states
- Simplified data fetching

### Creating Your First Route

Create a new folder in the `app` directory:

```tsx
// app/about/page.tsx
export default function AboutPage() {
return

About Us

}
```

That's it! The file automatically becomes a route at `/about`.

## Best Practices

1. **Use Server Components by default** - Only use Client Components when you need interactivity
2. **Leverage Server Actions** - Simplify your data mutations
3. **Implement proper loading states** - Use Suspense and loading.tsx files
4. **Optimize images** - Always use the Next.js Image component

## Conclusion

Next.js 14 with the App Router provides a powerful foundation for building modern web applications. The combination of Server Components, improved performance, and developer experience makes it an excellent choice for your next project.

Ready to dive deeper? Check out the [official Next.js documentation](https://nextjs.org/docs) for more information.