Costa Blanca. Spring 2026.

JackNapier.

Builder. Father. McDonald's apologist. Living and working at 38°47′N, 0°10′E.

On the
McDonald's
question.

I know the room I am in. Functional food. Sports nutrition. Wellness adjacent. Some part of you expects me to say I do not eat McDonald's. That I do a sixteen-hour fast and only break it on cold-pressed kale grown by a man named Ferran.

I will not.

On a Saturday afternoon in Jávea, with two small kids who are five minutes from a meltdown and a wife who has earned a break, I will drive directly to the McDonald's on the carretera, and I will buy a Big Mac and a small Coke and a fries, and I will sit on the plastic seat and watch my children eat chicken nuggets in a state of complete grace. And I will be happy.

Here is what nobody in the wellness room wants to talk about.

  1. The food safety standards are among the highest in the world. The procurement systems that became the global blueprint for HACCP came in part out of McDonald's supply chain. The chicken in a McNugget is held to a tighter testing regimen than most boutique butchers can dream of.
  2. The price is honest. A family of four eats for the cost of a single appetizer at the wellness restaurant down the street. Convenience is a luxury. Affordable convenience is rarer than that.
  3. It is convenient in a deep, unsexy way. Doors open. Bathroom available. High chair ready. Toy on hand. Time-to-food measured in minutes, not in patience.
  4. It is the same in Sevilla, in Stockholm, in Spokane. There is a quiet kind of comfort in knowing the menu does not depend on the chef having a good day.

Exhibit A. Jávea, last Saturday.

I run companies in the wellness adjacent space and I love McDonald's. These are not in conflict. They are the same instinct. Build the thing that works, every time, for every person, and price it so people can afford to keep coming back.

Why I cannot stop
building things.

There is a particular anxiety that comes with knowing you can build something.

It does not switch off.

It does not care that the day is over. It does not care that the kids are asleep. It does not care that you have a glass of wine in your hand and a nice view of the sea.

It only cares that something exists in your head and does not exist in the world. And that this is a problem you are going to have until you make it.

I have followed that pressure for twenty years. Through California. Through Florida. Into Barcelona, then into Jávea. Through marriages and recessions and the births of children. Most people learn to ignore it. I never figured out how.

The gap between a hard idea and a working version of it is only ever closed by other people. Not just any people. Inspired ones.

People who walk into the room already half in love with the work. People who argue about a feature nobody asked for at a Friday dinner. People who would rather talk shop than do almost anything else.

Find them. Refuse to waste their time. Make the room around them better than the day before.

That is the actual job.

What I am building this season.

Three projects, one obsession.

01

Pricemart a pan-European functional-food platform

Connecting health-driven brands with the right shelves across the EU. International by default. Nothing about it works in only one country, which is the entire point.

pricemart.eu → A field guide to the AI agents I built to run it →
02

Build & Bike Jávea a yearly engineering retreat

A few days each year of friends, founders, and friends-of-founders riding bikes, building things, and arguing about the right thing to ship. A Costa Blanca summer ritual, on purpose.

03

Wildbreeze internal tooling, scheduled agents, weekly reports

The plumbing nobody sees and everyone benefits from. Custom MCP servers and scheduled tasks that keep small operations honest while the team is asleep.

wildbreeze.io →
Things I made by hand and put on the internet.

Creations, in the wild.

The Agent Workshop, illustrated cover with a small round robot named Pip reading a field guide, surrounded by six floating pastel pattern cards.
Published 2026 · ~25 min read · interactive

The Agent Workshop

An illustrated nine-station field guide to AI agents for the people who run small businesses. Six short stations get you familiar with how agents work. Three workshop benches at the end let you actually design one for yourself, with auto-saved forms that export to a build-ready Markdown packet.

Illustrated guide 94 hand-prompted illustrations Interactive studios
Take the tour →
The Research Workshop, illustrated cover with Marie Curie as a friendly approachable scientist guide, standing in a small university laboratory with a clipboard, brass microscope, glass beakers, bound notebooks, a chalkboard with a hand-drawn periodic table behind her.
Published 2026 · ~50 min read · interactive

The Research Workshop

An illustrated six-station companion to the agent workshop, applied to the research production line. Five short stations teach the skill-thinking habit (spot, cut, schema, compress, joint), each with a small interactive exercise drawn from real lab work — XRD phase ID, literature cartography, control experiment design, reviewer-response classification. The builder bench at the end produces a real research skill as a downloadable Markdown file, autosaved as you type.

Illustrated guide For working academics Skill builder studio
Take the tour →

The trail
behind me.

Twenty years of slow drift, west to east. California to Florida to Barcelona. And now Jávea, the place I will probably die in, if the orange grove keeps fruiting.

Pasadena 2006

First job at a digital PR agency. Learned that everything is a deadline, including the deadlines you give yourself.

Burbank 2007

Recruiter for a software performance company. Learned to read a room.

Tampa 2009

Deputy CEO at Studio98. App development for the largest furniture retailers in the United States. Learned what a production team is, and what one isn't.

Barcelona 2012

Director of Technology at an e-commerce platform serving 1.5 million SKUs. Learned how to ship across languages, currencies, and warehouse providers.

Jávea 2024

Building a small portfolio of functional-food and software ideas. Mostly outside, mostly with two kids underfoot, mostly happier than I have been at any prior stop on this list.

Tiger, the brothers,
and the orange grove.

In 2018 I walked into a temple complex in Kamakura on the way to a friend's wedding and stood in front of a four-panel painted screen of two tigers under a pine. I have not been able to forget it. When my son was born I called him Tiger. He moves through the world the way that screen does. Present. Unhurried. A little bit fierce.

I am a long way from where I started. California, then Florida, then a slow settling into the Mediterranean. But the people closest to me have not moved in any meaningful sense. My brothers and their families are the through-line. They keep me honest about what actually matters when the rest of it goes loud.

We landed in Jávea because it had the things a working family needs and nothing it doesn't. A sea. A mountain (Montgó, photogenic on bad days and unbelievable on good ones). An orange grove in the back garden that flowers white in February. Enough quiet to think.

If you ever find yourself in Jávea with small kids of your own, I keep a running field guide to our weekends here. Beaches, markets, the lighthouse walk, an honest opinion on every playground within thirty minutes.

The things I keep
coming back to.

The first swim of the day, before email.
A long run along the coastal path.
Surfing. Any board, any break, any decade.
Talking shop until the wine is gone.
The Montgó wrapped in cloud.
The first orange of the year, off the tree.
Friends who ship.
A McDonald's with two kids on a Saturday.
The hour before the rest of the house wakes up.
A train to nowhere in particular.