What does it take to build an AI app builder specifically for product managers—not…

What does it take to build an AI app builder specifically for product managers—not engineers—inside an already crowded market? In this episode of Just Now Possible, Teresa Torres talks with Brian De Haaff (CEO and Co-Founder), Chris Waters (CTO and Co-Founder), and Sarah Moisan-Thomas (Senior Product Manager) about Aha! Builder, Aha!'s AI-powered app builder built for product managers. Aha! is a fully bootstrapped, profitable, remote-first company that has served product teams for over 13 years without a single salesperson. Guests: - Brian De Haaff – CEO and Co-Founder, Aha! - Chris Waters – CTO and Co-Founder, Aha! - Sarah Moisan-Thomas – Senior Product Manager for Aha! Builder, Aha! They walk through Aha!'s five-step product discovery framework—spark, paper prototypes, proof of concept, early access, and general availability—that led them to Builder. They share why their first version, built on containerized Ruby on Rails infrastructure, proved too wasteful to scale, and how they rebuilt it on a single-instance, multi-tenant architecture using V8 isolates. Along the way, they explain their approach to deterministic guardrails for things like authentication, SSO, and databases, and how a multi-phase, multi-agent pipeline generates a design system, a prototype, and a working application in minutes. You'll hear how they think about the line between what AI should build and what should stay deterministic, how they handle enterprise concerns like SSO and PII, and why they believe knowing what to build—not how to build it—is where product managers will increasingly add value. Key Takeaways: - Aha! is fully bootstrapped, remote-first, and profitable—built by product people, for product people - Containerized infrastructure proved too wasteful for AI app building at scale, pushing Aha! to rebuild on a single-instance, multi-tenant architecture - Deterministic, pre-built components (authentication, SSO, database, email) cut token cost and guarantee reliability that AI-generated code can't - A multi-phase, multi-agent pipeline—design system, then prototype, then backend—produces better outcomes than a single open-ended chat prompt - As building gets easier, knowing what to build becomes the product manager's real differentiator In This Episode: - Aha!'s 13-year bootstrapped, remote, no-salespeople business model - The five-step discovery framework Aha! uses for every new product, including Builder - Why their first containerized version was too slow and expensive to scale - Rebuilding for a single-instance, multi-tenant architecture - Reusing the agent framework and tool set originally built for "Elle"—Aha!'s roadmapping AI assistant - Deterministic components for authentication, SSO, database access, and email - The multi-agent, multi-phase build pipeline: design system, then prototype, then full application - Enterprise governance: authentication policies, deployment guardrails, and PII/PHI considerations - Why Aha! is optimizing for prototypes, proofs of concept, and internal "meta applications"—not primary line-of-business apps - What's next: expanded design systems and tighter feedback loops across Aha!'s product suite Resources & Links: - Aha! Chapters: 00:00 Meet the Aha! Team 00:19 Aha! Bootstrapped Remote Story 01:29 What Is Aha Builder 02:27 Leaders Stay Hands On 04:49 Origin and AI Shift 07:44 Why Build in Aha! 14:12 Discovery Framework 17:50 From Slides to Early Access 21:40 Proof of Concept Approach 23:36 Under the Hood Architecture 27:01 Agent Tools and UX 30:59 Deterministic Components 33:42 Skills Docs and Iteration 35:48 Higher Level Building Blocks 36:33 Knowing What To Build 38:57 Builder UX For PMs 44:10 Enterprise Governance Guardrails 47:29 What Builder Is For 50:39 PII Security And Compliance 53:15 Quality Evals And Pricing 55:29 V8 Isolates Architecture 58:22 Multi Agent Build Pipeline 01:01:14 Roadmap Design And Feedback 01:03:01 PMs Engineers And PR Flow 01:05:52 Wrap Up And Thanks Listen on Spotify, Apple Podcasts, or watch on YouTube. Spotify: Apple Podcast: YouTube:Teresa Torres on X · Sep 17, 2026