Hi Reader,

Welcome to Hal9 Weekly — insights from our founder Javier on turning AI ideas into real products.

Javier's Insights:

Send the Investor Update. Every Month. No Exceptions.

There's a take going around that investor updates are optional — or even a distraction. I disagree.

The fastest YC companies to hit $1B valuations? They sent monthly investor updates. Consistently.

Here's why it matters more than most founders realize:

It takes very little time. A well-structured update takes 30–60 minutes to write. That's it. The ROI on that hour is hard to match anywhere else in your week.

It keeps you top of mind. Investors back dozens of companies. The ones they actively help, introduce to customers, and think about during partner meetings are the ones they hear from regularly. Out of sight, out of mind is real — and it costs you.

It builds confidence without a pitch. Showing up consistently with clear progress — even when things are hard — signals the kind of founder discipline investors want to double down on. You don't need a big win every month. You need to show you're in control of the narrative.

It forces you to reflect. Writing the update makes you articulate what's actually working, what isn't, and what you're prioritizing next. That clarity is valuable for you, not just your investors.

It's the best time to ask for help. A warm, engaged investor who just read your update is far more likely to make an intro, open a door, or share a connection than one who hasn't heard from you in four months.

The founders who treat investor updates as a chore are the same ones who wonder why their investors feel distant. The ones who treat it as a relationship-building tool end up with a network that compounds.

Send the update.

What's holding you back from sending monthly updates — time, uncertainty about what to include, or something else?

Customer Success Story: MoneyHaven

Modernizing a Latin American Savings Tradition — With AI, in Under 30 Days

MoneyHaven is doing something genuinely original: taking the tanda — a communal savings practice deeply rooted in Latin American culture — and rebuilding it for modern life in the USA. The idea is simple and powerful: savings groups where community accountability replaces the willpower most people don't have.

Founder Fanny Tavera knew the cultural insight was right. What she needed to validate was whether the technology could actually deliver on it.

The Challenge: Build a technically functional MVP in under 30 days — testing the full stack from app interface to backend infrastructure to financial data integration, while also exploring whether AI could meaningfully enhance the savings experience for users.

Hal9 helped MoneyHaven:

🚀 Deliver a working MVP prototype in under 30 days, validating the core technical architecture end-to-end

💬 Prototype an AI-powered conversational agent for personalized financial guidance — testing LLMs for real user value before committing to a direction

🏗️ Build a minimal but production-realistic backend and database layer to simulate actual user workflows and financial data flows

📱 Evaluate communication platforms (Telegram, Discord) for group savings coordination — ultimately deciding to build a custom in-app chat feature instead

🗺️ Produce a clear, validated roadmap for the next iteration of a fully-featured AI savings platform

The result? MoneyHaven emerged from the sprint with validated architecture, a working prototype, and the answers to the questions that would have otherwise cost months of guesswork. They're now positioned as an innovative force in fintech — with a product roadmap grounded in real technical evidence, not assumptions.

Let’s Talk

Got an AI idea/building something and want to chat about it?

Book a free consultation with Javier — he’ll help you validate it before you build, so you don’t lose time chasing the wrong version.

Talk soon,

—The Hal9 Team