Free ebook by Michael Lee

The Other 90%

AI-Enabled Zero to One That Works
10% building · 90% everything else

AI can build a working app in days, but building is about 10% of a product’s life. The other 90% is getting it adopted, keeping it running, and knowing what it costs. That’s where products die, and no AI will warn you.

Free for everyone. No sign-up. Share it with anyone.
Who it’s for

You shipped the prototype. Now what?

You vibe-coded a product

With Claude Code or Lovable, you’ve done the 10%. The rest starts now.

You were the best engineer in the room

Now you lead it. AI writes the code. Your job is a machine that keeps shipping while you’re on vacation.

You can sell but can’t build

That matters less than ever. Getting three committed early customers to pay matters more.

What’s inside

Three pillars. Each one fails without the other two.

Short, opinionated chapters built from real launches with Fortune 500 design partners and venture-backed startups. Every section takes a position and backs it with a story.

Part 1

The Delivery Pipeline

  • Three intake agents that find the need under the request
  • One ticket number from request to release
  • Feature health computed from win conditions, so nobody picks their own color
  • Take humans out of testing, and keep stakeholders on the last look
Part 2

The Team

  • Hire a systems thinker first, and avoid the superhero
  • Feature champions: everyone leads something
  • Leading across borders with one standup and two AI briefings
  • Leading up with three tracks
Part 3

Go-to-Market

  • Why internal tools die with applause
  • Three champions and the commitment ladder
  • The paid pilot: why even $1,000 changes behavior
  • Bring IT in before procurement

Plus 11 one-page runbooks

Checklists for doing the work, from your first 14 days with an inherited product to the technical trust kit IT will ask for.

  • A1Starting from nothing
  • A2Inheriting a product: the first 14 days
  • A3The tool stack
  • A4Requirement template
  • A5Building a scoring rubric
  • A6Operating cadence
  • A7Branching in one page
  • A8Hiring a systems thinker
  • A9Cross-region working agreement
  • A10Pilot readiness and the trust kit
  • A11Agent roster and repo conventions
Most manual review is fear.
1.9 · Gates
People are sacred, ideas are not.
2.3 · Feature champions
Don’t let people pick their own color.
1.6 · Feature health
Shipped but unused doesn’t count.
3.8 · Graduating
About the author

Michael Lee

Michael builds the systems that let software teams deliver without heroics. He spent fifteen years as a developer and architect on enterprise platforms, then led engineering at venture-backed startups.

  • Three months to production with a Fortune 500 design partner, a six-person team, and a six-person build partner.
  • Doubled release throughput after staff cuts, and cut infrastructure cost 70%.
  • One platform, half the cost: a sprawl of AI applications consolidated, with new apps launching three times faster.

Read it this weekend. Use it Monday.

The handbook is free, and so is the first conversation if you want help putting it to work, on contract or as part of your team.

© 2026 Michael Lee · Free to share under CC BY-NC-ND 4.0mlee.biz · LinkedIn