Engineering & fundraising notes

Technical Due Diligence: A Checklist Before You Raise

Investors are not grading your code. They are checking whether the engineering can absorb the money, and whether anything in it could destroy the value after they wire.

Sergio Jimenez·October 21, 2026·6 min readRead the article

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Adding Payments to Your Product with StripeTaking a card payment is a week. Running a system that still agrees with Stripe after six months of refunds and disputes is the actual project.5 min read
Multi Tenant SaaS: What to Decide Before You BuildThe decisions that are cheap on day one and expensive on day four hundred. Isolation model, tenant boundary, memberships, and what you can safely defer.5 min read
How to Cut Your LLM API BillMost teams paying too much are not paying for intelligence. They are paying to resend the same text thousands of times a day. Six levers, ordered by return.6 min read

Latest

6 min read

AI Agents in Production: Guardrails and Evals

The demo takes two weeks. Everything after it is the difference between a feature you can keep changing and one you are afraid to touch.

October 21, 2026

5 min read

RAG or Fine Tuning: Which One Do You Actually Need?

RAG teaches knowledge, fine tuning teaches behaviour. One question decides which you need, and most teams reach for the expensive one first.

October 21, 2026

6 min read

How Much Does It Cost to Build an AI Agent?

Between 20,000 and 150,000 dollars to build, plus a running cost that scales with conversations. Here is how both numbers are built, and why acting costs so much more than answering.

October 21, 2026

6 min read

How to Choose a Software Development Agency

Competent suppliers and confident ones both have good websites. These are the seven questions that tell them apart, and the answers worth accepting.

October 21, 2026

6 min read

React Native or Native: How to Actually Decide

Not an ideological question. Four facts about your product decide it: how many platforms you ship, how much of the device you touch, who maintains it, and how long it has to live.

October 21, 2026

7 min read

How Much Does It Cost to Build an MVP in 2026?

An MVP costs between 15,000 and 120,000 dollars. Here is what actually drives that number, a worked example, what you can safely cut, and the costs nobody puts in the quote.

October 21, 2026

What we build

Mobile appsiOS and Android from one React Native codebase, published under your own developer account.Web platforms & internal toolsThe product your customers log into, and the console your own team runs the business from.AI, agents & automationApplied AI that survives contact with production: agents that do real work, with the guardrails that keep them honest.Payments, fintech & Web3Money movement held to fintech standards, from card checkout to cross-border rails and on-chain settlement.APIs, data & integrationsThe services everything else talks to, and the pipes that keep your systems agreeing with each other.Cloud, DevOps & reliabilityWhere it runs, how it ships, and what happens when something breaks at 3am.

Venturial

Your product, built end to end.

Mobile apps, web platforms, payment systems and AI agents. One team, from the first call to production and the version after it.

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