Animated GIF of illustrated me!

I used to design solutions. Now I build them too.

Product designer with 20+ years in branding, UX, and web. Now focused on building AI-powered tools and products that actually ship.

I used to design solutions. Now I build them too.

Product designer with 20+ years in branding, UX, and web. Now focused on building AI-powered tools and products that actually ship.

LATEST PROJECT · DESIGN & BUILD

Kappa-OS. A portfolio you boot into.

My latest project turns a portfolio into a miniature desktop operating system. Open windows, explore the file system, play some tunes, and discover my work by getting your hands on it.

Kappa-OS screen with windows

A working desktop with draggable, resizable windows, Spotlight search, keyboard shortcuts, Trash and undo. Inside: SNAP’s WebGL photography wall, a retro music deck, the kappash terminal, a period browser, SIGIL’s personalised certificate press, and FOURBIE.

Built with Next.js, React, TypeScript and Tailwind CSS, with three.js powering the photography experiences and sounds synthesised at runtime.

3D Redner of Silver YSL Rings
3D render of Defender
3D render of close-up Defender

At my core, I'm a designer. Someone who's always creating, always building, always looking for a better way to solve a problem.

I've got a strong design foundation, but I've never been precious about tools. I pick up whatever gets the job done. What changed recently is that AI removed the last bottleneck. I used to be able to design a solution. Now I can build it too.

Chrome extensions, React apps, iOS and Android, full websites. Some things take an afternoon. Some take months. The size doesn't matter much. What matters is that something gets made.

I'm happiest when I'm creating.



3D render of a sculpture

1:20 Designed & 3D printed for the Hellenic House Project

Side projects with real audiences.

I build tools/apps for niche communities, including DCS Tactical, a weapon data reference used by the DCS World sim community.

View Experiments

3d render of glitter covered word HEY!
Typographic 3D Render of the word Hope

3D & Digital Art

Not everything needs a brief. Some of this is client work. Most of it is just me seeing what's possible in Cinema 4D.

Typographic 3D Render of the letter 3
Typographic 3D Render of the word Love
Typographic 3D Render of the number 7

FAQs

Are you available for freelance work?

What do you actually do?

What's your background?

What are you working on outside of your day job?

What's your take on AI and design?

Can I reach out anyway?

Typographic 3D Render of the word Hope
Mockup of hand holding phone with weather app on it

MADE BY KAPPA

Copyright © 2025 - John Kappa - All Rights Reserved

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MADE BY KAPPA

Copyright © 2025 - John Kappa - All Rights Reserved

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You're viewing this site from

Location