Building a High-Performance Portfolio with Next.js 16

Building a portfolio website is more than just showcasing your work—it's an opportunity to demonstrate your technical expertise and attention to detail. In this post, I'll walk through the key decisions and architecture behind this portfolio.

Tech Stack

This portfolio is built with cutting-edge technologies:

Next.js 16 with App Router for optimal performance
React 19 with Server Components by default
TypeScript for type safety
Tailwind CSS v4 for modern, efficient styling
Turborepo for monorepo management

Performance First

Performance was a top priority from the beginning. Here's how we achieved it:

Server Components

By defaulting to Server Components, we minimize JavaScript sent to the client. Only interactive components like the navigation menu and contact form use client-side JavaScript.

// Server Component (default)
export function Projects() {
  return (
    <section>
      {/* Rendered on the server */}
    </section>
  )
}

// Client Component (only when needed)
"use client"
export function ContactForm() {
  const [formData, setFormData] = useState({})
  // Interactive logic here
}

Image Optimization

All images use Next.js's built-in Image component with proper sizing and lazy loading:

<Image
  src={project.image}
  alt={project.title}
  fill
  sizes="(max-width: 768px) 100vw, (max-width: 1200px) 50vw, 33vw"
/>

Static Generation

The entire site is statically generated at build time, resulting in instant page loads and zero server processing for each request.

Accessibility

Accessibility is not an afterthought—it's built into every component:

Semantic HTML (<nav>, <main>, <article>)
Proper heading hierarchy
ARIA labels for icon buttons
Keyboard navigation support
Color contrast ratios ≥4.5:1 (WCAG AA)
prefers-reduced-motion support

Clean Architecture

The codebase follows a clear separation of concerns:

apps/web/src/
├── components/
│   ├── sections/    # Page sections
│   ├── ui/          # Reusable UI components
│   └── mdx/         # MDX-specific components
├── content/         # Data and MDX files
├── lib/             # Utilities
└── types/           # TypeScript definitions

Monorepo Benefits

Using Turborepo allows us to share UI components across potential future apps:

@repo/ui - Shared component library
@repo/typescript-config - Shared TypeScript configs
@repo/config - Shared ESLint configuration

Results

The final result speaks for itself:

Lighthouse Performance: 95+
First Contentful Paint: < 1.5s
Time to Interactive: < 2.5s
Bundle Size: < 150KB (excluding images)

Key Takeaways

Server Components are powerful - Use them by default
Performance matters - Users notice slow sites
Accessibility is essential - Build it in from the start
Clean architecture - Makes maintenance easier
Monorepos scale well - Plan for the future

Building this portfolio was an exercise in applying best practices and modern web standards. The result is a fast, accessible, and maintainable website that showcases both content and technical skill.

Want to build something similar? Feel free to reach out or check the source code on GitHub!

Performance First

Performance was a top priority from the beginning. Here's how we achieved it:

Server Components

By defaulting to Server Components, we minimize JavaScript sent to the client. Only interactive components like the navigation menu and contact form use client-side JavaScript.

// Server Component (default) export function Projects() { return ( <section> {/* Rendered on the server */} </section> ) } // Client Component (only when needed) "use client" export function ContactForm() { const [formData, setFormData] = useState({}) // Interactive logic here }

Image Optimization

All images use Next.js's built-in Image component with proper sizing and lazy loading:

<Image src={project.image} alt={project.title} fill sizes="(max-width: 768px) 100vw, (max-width: 1200px) 50vw, 33vw" />

Static Generation

The entire site is statically generated at build time, resulting in instant page loads and zero server processing for each request.

Clean Architecture

The codebase follows a clear separation of concerns:

apps/web/src/ ├── components/ │ ├── sections/ # Page sections │ ├── ui/ # Reusable UI components │ └── mdx/ # MDX-specific components ├── content/ # Data and MDX files ├── lib/ # Utilities └── types/ # TypeScript definitions

Key Takeaways

Server Components are powerful - Use them by default

Performance matters - Users notice slow sites

Accessibility is essential - Build it in from the start

Clean architecture - Makes maintenance easier

Monorepos scale well - Plan for the future

Want to build something similar? Feel free to reach out or check the source code on GitHub!