Most founders follow the same sequence: Build the product. Demo it. Then try to sell it.

I flip that order. Demo first. Sell second. Build last.

This isn’t a new concept — I’ve used this approach to launch every product I’ve built, from my first book Running Lean to coaching programs to software like Lean Canvas and now LEANSpark. But when I showed the LEANSpark landing page to early backers, I got a question that comes up constantly: “You’ve already got a working product, so aren’t you really doing Build-Demo-Sell?”

My response: you’re assuming the demo you see on the landing page is driven by working code. It’s not.

The Concierge MVP as Launch Vehicle

Before I ran any campaign, I started with a Concierge MVP — a high-touch services model where I, the founder, became the product.

Every product lives in two contexts: the solution context (where features live) and the bigger context (where outcomes and jobs to be done live). LEANSpark is an AI tool, but the bigger context is driving business model validation for founders.

So I offered personalized business model reviews. Founders submitted their Lean Canvas, and I delivered a diagnostic walkthrough on a call. This approach served two purposes simultaneously:

  1. Learning from customers. Every review was a disguised problem discovery interview using a “give before you get” approach — I gave them a detailed diagnostic, then asked for a follow-on interview.

  2. Building the product. When a canvas came in, I first ran it through my LEANSpark prototype to see what it would do, then tweaked the product to match how I would review it. Each cycle made the AI better.

After about 10 of these concierge reviews, I had enough customer signal to know the direction was right. It was time to scale beyond high-touch.

The 10x Product Launch

I’ve realized over many years that no matter how fast founders try to grow, products still follow a hockey-stick trajectory. The 10x Product Launch framework is about playing the hockey stick instead of letting it play you.

You scale in order-of-magnitude jumps:

  • 10 customers — High-touch, manual, maximum learning. This was the Concierge MVP phase.
  • 100 customers — Semi-automated, start testing pricing and channels. This was the Demo-Sell-Build campaign.
  • 1,000 customers — Automated, self-serve, full infrastructure.

Each level surfaces different constraints. At 10, it’s “does anyone care?” At 100, it’s “will they pay?” At 1,000, it’s “can we deliver at scale?”

The Campaign: Real Numbers

I launched Stage 1 on October 9th with just 10 spots, targeted to a carefully handpicked group of our most active customers. All 10 spots filled in 6 days.

Stage 2 launched immediately after and sold out by October 30th when we opened Stage 3.

The landing page had three elements every offer needs:

  1. A UVP (promise) designed to earn attention. The headline: “Validate Faster, Build With Confidence.”
  2. A demo designed to earn trust. Three screencasts showing real-looking conversations between a founder and LEANSpark — addressing the top 3 problems on my Lean Canvas.
  3. A clear call-to-action with three pricing tiers that transitioned from high-touch (concierge reviews + coaching) to scalable (tool-only access).

Here’s the key: the screencasts weren’t recordings of working software. I had Claude Code build a demo runner that simulated ideal conversation exchanges, which I recorded as screencasts. Everything shown was within our technical confidence to build, but none of it was built yet.

When a customer buys a demo, the demo becomes the best requirements doc. All you need to deliver is what the customer bought.

The results across two campaigns (the October Demo-Sell-Build + a November Black Friday bundle):

  • 209 customers enrolled
  • $35K in revenue
  • 40 days from campaign launch to goal

We had set a 90-day goal of 200 paid trials. We hit it in less than half the time.

Why This Works

Demo-Sell-Build works because it aligns risk reduction with revenue generation. You’re not spending months building something nobody wants. You’re validating demand with real money while simultaneously learning what to build.

The concierge MVP gives you deep customer insight. The demo-sell-build campaign gives you scale. Together, they compound — every tier 2 customer who bought a canvas assessment was also a problem discovery interview. Discovery and selling happened in parallel, not sequentially.

And because you’re selling before building, the product you eventually build is shaped by what customers actually bought — not what you assumed they wanted.

The Takeaway

You don’t need working code to build a real-looking demo. You have to design the product anyway — why not build a demo at the same time?

Start with concierge. Learn from 10 customers. Then stack your offer — transition from high-touch to scalable using a demo-sell-build campaign. Let customers tell you what to build by buying it first.

I walk through the full campaign in Episode 4 of Building LEANSpark.