Based in Brazil
Blog

Latest Thinking

AI-first engineering, iOS development, and the unfiltered reality of building software.

// 7 min

Making My Apps Siri-Native Before Apple Tells Everyone To

Apple is building an agentic OS where Siri reaches into apps. I shipped App Intents for both my iOS apps before WWDC — here's what I learned and why it matters.

ios siri app-intents swift indie-dev
// 5 min

Building Delivery Automations Into a Package Tracker With App Intents

I wired Packybara's delivery detection to Shortcuts event triggers. Now 'when my package arrives, send a text' is a real automation. Here's the technical story.

ios siri app-intents automation indie-dev
// 5 min

Scan Tracking Codes With Your Camera: Building OCR Into a Package Tracker

Brazilian tracking codes are everywhere — printed slips, WhatsApp screenshots, marketplace emails. I built camera-based OCR into Packybara so users never have to type one again.

ios vision ocr swift indie-dev
// 7 min

Building Packybara: Because Every Tracking App in Brazil Has Ads or Bad Vibes

I built a native package tracking app for iOS and Android with a pixel-art capybara because the alternatives were either bloated with ads or just not my taste. Here's the honest story.

ios swift android kotlin indie-dev ai
// 6 min

Building CapyCast: How a Capybara Shipped a Weather App

I built a pixel-art capybara weather app for iOS using Capy — my own multi-agent workflow builder. Here's what happened when I let the capybaras run the show.

ai ios swift capy indie-dev
// 5 min

AI Context Checklist Part 2: What Actually Works

I wrote a checklist for working with AI. Then I actually used it for months. Here's what survived, what changed, and the workflow I run today.

AI Engineering Productivity Claude Code
// 5 min

From Build to App Store in One Prompt: AI Skills That Ship

I built reusable AI skills to generate App Store icons, screenshots, and localized marketing — for iOS and Android. I didn't write a single line of code.

AI Engineering iOS Automation Claude Code
// 5 min

How I Replaced a $20/Month Server with $1.50 in Serverless

Migrating MarketCapy's backend from a DigitalOcean droplet to Supabase Edge Functions. I made the decisions — the AI wrote the code.

Supabase iOS Serverless Architecture
// 5 min

Why I'm Writing About AI-First Engineering

The 17-year setup, the shift, and why I'm writing about it now.

AI Engineering Opinion
// 4 min

AI Context Checklist: From Chatting to Architecting

Stop correcting the AI. Start directing it. A practical checklist for getting better results.

AI Engineering Productivity