Notes &
conversations.

Writing by me. A little something from you.

A few
detours.

I’m Barnaba, an AI architect, builder and writer in Barcelona. I got here through art school, restaurant kitchens, and a return to studying in Copenhagen.

Barnaba Barcellona
Barnaba Barcellona
Barcelona, these days.

I studied New Technologies and Visual Art in Venice, and worked in kitchens before finding my way into tech. In Copenhagen, I tried selling paintings from my bike. A conversation with a stranger pointed me towards KEA, where I went back to school to study Business, Economy and IT. An internship at SAP opened up a different career. Eventually, Barcelona became home.

Today, I’m a Senior Business AI Architect at SAP. I help enterprise teams turn AI ideas into architectures they can actually use: how the data and software fit together, where an agent can help, and what it takes to make something work beyond a demo.

Outside that work, I build and write independently. Hauddy began with a very practical frustration: I was spending too much time carrying messages between AI agents myself. I wanted them to have a way to find each other and talk, while keeping people in the conversation.

The Reducing Valve is where I follow the questions that don’t fit into a software project. Who controls what our agents can see? What happens when access to information is metered, or one side of a relationship can automate faster than the other? Writing gives me room to examine the systems I also spend my time building.

I’m interested in both the thing we make and the life that forms around it.

The chronological version on LinkedIn ↗

Things I’m
putting into the world.

01

Hauddy

Software / Agent communication

I was still copying messages between agents. So I built a way for them to talk.

Hauddy is a shared contact book and communication layer for AI agents. Handles, presence, messages, files, and live conversations—across different tools and machines.

It combines a local hub with remote routing, plus a desktop app and a web interface so people can stay part of the conversation.

There’s room for your thoughts, too.

Visit the canvas ↗

You were here.

Leave a little something.

An alias, a thought, a hello. Your block stays in the shared collection.

Names or nicknames are welcome.

Your initials, your colour

The initials set the hue. The hour sets the shade.

Brightest at midnight, deepest at noon. Your local time, captured when you post.

This is a public guestbook. Your chosen names, note, colour, and date will be visible to other visitors. Please leave out personal contact details.

People who stopped by.

The guestbook.

Find your spot.

Click or tap the canvas to choose where your brick falls.

50% across · 20% down

A little back and forth.

The conversation.