Hal9 Weekly Roundup: Build Smarter. What LimberHealth Teaches Founders + Our 3-Stage Playbook


Hi Reader,

At Hal9, we help Startup Founders turn AI ideas into products—fast. Each week, we’ll share insights from our founder Javier, spotlight real customer stories, and keep you updated on what’s happening at Hal9 and beyond.

Event Spotlight

At Hal9, we help startup founders turn AI ideas into products—fast. Each week, we share upcoming events, founder lessons, and customer spotlights to help you on your AI journey.

📅 Upcoming Webinar: From Idea to AI MVP in 30 Days

Date & Time: Oct 16, 2025 · 11:00 AM PT
Where: Online

Join the Hal9 team for a live webinar where we’ll walk through our proven 3-Stage Playbook for AI MVPs, the same framework that has helped dozens of early-stage founders go from idea to market-ready products in weeks—not months.

You’ll get:

  • A practical, step-by-step approach to validating your idea
  • Real founder case studies showing how AI MVPs get built fast
  • Clear, actionable steps to de-risk your idea and launch with confidence

👉 Register here


🍸 Future Founder Happy Hour — San Francisco

Date & Time: Thursday, Oct. 9th at 6 PM PT
Where: Underdogs Cantina

Join Javier and the Hal9 team during SF Tech Week for an evening of food, drinks, arcade games, and real talk with fellow founders.

Why join?
✨ Meet non-technical founders building ambitious AI products
✨ Swap stories, ideas, and lessons learned
✨ Leave with new connections—and maybe the push you’ve been waiting for

👉 Reserve your spot here

Tech Week, (presented by a16z) is a week of events hosted by VCs and startups to bring together the tech ecosystem. SF Tech Week takes place October 6-12, followed by LA Tech Week October 13-19. View the full schedule at: tech-week.com/calendar


💡 Javier’s Insights of the Week

Javier shared three big lessons for founders this week:

  • Prototype in 30 Days (Not 1 Year)
    Too many non-technical founders spend a year “vibe-coding.” Instead, start with LLMs to test ideas, wireframe with tools like Moqups, and use no-code builders (Replit, Lovable) for a functional demo. Early customer tests save time, money, and runway.
  • AI Isn’t Plug-and-Play
    The UI is easy—the hard part is fine-tuning the AI so it actually delivers value. Great products come from iteration and refinement. Don’t underestimate how much work it takes to get the AI right.
  • How to Spend $50K on an AI Startup
    Founders often overspend on product or marketing. The smarter play? Split it 50/50: half to go-to-market (finding customers), half to product (market research + MVP build). At Hal9, we help founders stretch that product budget further by delivering scalable MVPs in weeks.

🌟 Founder Spotlight: LimberHealth

💪 Revolutionizing Physical Therapy with AI
LimberHealth, a digital health startup, empowers doctors and physical therapists with AI-powered tools to extend patient care at home. Their challenge: deliver clinical-grade assessments using only everyday devices—without compromising privacy.

Hal9 helped LimberHealth:
🤖 Build AI-powered motion tracking for at-home therapeutic exercises
📱 Process video locally on users’ devices to protect privacy
🩺 Validate hundreds of functional tests with clinical experts
✅ Submit one test for FDA approval

The result? LimberHealth is leading the way in digital MSK care, combining in-clinic expertise with at-home AI support to help more patients complete treatment and recover faster.

👉 Read the full story here

Let's Talk

We love talking with founders, current and aspiring—whether you’re refining your idea or scaling your product.

👉 Book a 30 minute Strategy Call with Javier here to share your product or idea, and explore how we can help.

Or reply with your biggest AI product challenge—we’ll feature answers in future issues.

Talk soon,

—The Hal9 Team

Hi from Hal9!

Each week we share insights from our founder Javier, spotlight real customer stories, and keep you updated on what’s happening at Hal9 and beyond. Looking forward to staying in touch.

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