Market of One

The case for building a lifelong, 'with-or-without-customers', almost-autonomous digital company.

VIBE WORKING

Marco Fantozzi

4/15/20265 min read

The startup advice I've heard most often: "Make sure there's a real market for this."

I've started to think it's the wrong question. Not because market validation doesn't matter. But because it assumes the only reason to build something is to sell it to other people.

The assumption we don't question

Every piece of startup orthodoxy is built around the same premise: you have an idea, you find a market for it, you grow, you scale. The goal is always external. The measure of success is always adoption.

This made sense when building software was expensive and required teams. If you were going to invest $500,000 and two years of your life, you needed a market that would justify the investment.

But the cost of building has collapsed. Not gradually. Suddenly.

In 2025, with LLMs and tools like Lovable or Base44, a knowledge worker can go from idea to working product in days, not months. The marginal cost of building something for yourself is close to zero. When the economics change that fundamentally, the rules change too.

The inversion

Here's the idea: you are the market.

Not the only market. But the first and most important one. The one that doesn't need to be convinced, doesn't churn, doesn't need onboarding, and always knows exactly what the product should do next.

A Market of One company is a digital product or productized service where you are simultaneously the creative director and the lifelong user. If other people discover it and find it useful, that's a bonus. If nobody does, you still have something that works perfectly for you.

This isn't a consolation prize for failed startups. It's a fundamentally different goal from the start.

The question isn't "is this market big enough?" The question is: does this solve a problem that matters to me, for which no you-shaped solution exists?

Why the timing matters

Three things became true at the same time, and that convergence changes everything.

First: LLMs know all the best practices. When you're building a product, you're no longer alone in figuring out architecture, UX patterns, pricing models, or content strategy. You have access to the distilled knowledge of thousands of products that came before yours. The expertise gap that separated professional developers from everyone else has compressed dramatically.

Second: agents can handle the execution. The part of building that used to require either money (hiring) or years (learning) is now increasingly automatable. You can focus on what only you can decide: what to build, for whom, and why it matters.

Third: the tools are ready. Lovable and Base44 for SaaS products. Polsia and Quixy for building internal company tools. Seobot and Arvow for content. The stack for a solo knowledge worker to build and run an almost-autonomous digital product has never been more accessible.

The window where this is possible, before these tools become commoditized and everyone does it, is right now.

What it actually looks like

A Market of One company isn't a side project you abandon after three weeks. It's closer to what a craftsperson does: you build something you'll use for life, you maintain it, you evolve it as your needs evolve.

The form can be almost anything. A SaaS tool that automates a workflow you do repeatedly. A productized service that packages a skill you already have into something you could deliver with minimal active involvement. A content system that handles distribution while you focus on the thinking.

The key characteristic: you are the creative director. You decide what goes in, what stays out, what it looks like, how it feels. Not based on market research. Based on what you actually want.

This is different from freelancing, where the client is the creative director. And it's different from traditional startups, where the market is the creative director.

You decide. You live with the consequences. And because you're the primary user, the feedback loop is immediate and honest.

The "fellow people" effect

Something interesting happens when you build something specifically for yourself.

Because you have a specific, real problem, you've probably built something more precise and more useful than a product designed to appeal to the broadest possible audience. And precision attracts people who have exactly that problem.

You don't need a million users. You need the right ten. Or a hundred. People who look at what you've built and think: this person understood the problem exactly as I experience it.

That recognition is rarer and more valuable than mass adoption. It's the difference between having fans and having customers. Fans come because of who you are and how you see the problem. Customers come because you're the cheapest option available.

A Market of One company, if it attracts anyone, attracts fans. And fans tell other fans.

Create instead of consume

Here's the identity shift underneath all of this.

Most of us spend sparetime consuming: content, entertainment, other people's products. A Market of One company is a bet that building something is more satisfying than consuming it. That the time you'd spend scrolling or watching could instead go toward creating something that compounds.

This doesn't require you to become an engineer or a developer. It requires you to become a creative director who uses LLMs and modern tools the way a film director uses a camera: as instruments for expressing something, not as the thing being expressed.

The skill you're developing isn't coding. It's judgment. What to build, what to cut, when it's good enough, when it needs more work. Judgment is the only thing that compounds in a world where execution is increasingly automated.

The practical starting point

You probably already know what your Market of One company should be.

It's the tool you've been wishing existed for years. The service you've been providing manually that should be more systematized. The workflow you've described to colleagues five times that nobody has bothered to package.

The reason you haven't built it isn't lack of ability. It's the question "but would anyone pay for this?" getting in the way of "this would be genuinely useful to me."

Remove that question for now. Build the thing that solves your problem. Use the tools that exist: Lovable or Base44 to build it, agents to help maintain it, LLMs to fill the knowledge gaps.

Give it six months of your sparetime. By the end, you'll have something that works for you, skills you didn't have before, and a much clearer answer to whether other people have the same problem.

That's a better bet than consuming someone else's product for six months and ending up exactly where you started.

A different definition of success

The startup world measures success by growth: users, revenue, valuations. These are fine metrics if growth is your goal.

A Market of One company measures success differently: does it still solve my problem? Am I still using it? Have I learned something? Has it created space for something else in my life?

These are smaller questions with more honest answers.

And sometimes the most honest answer is the most useful one.

PS: I'm doing this myself with www.fifteen.media and I'm enjoying it. A lot.