Case study
Your music taste gives you away.
Quem Botou Essa? turns the call’s playlist into a file of suspeitos. A realtime music party game on the web and in a native SwiftUI client, connected to the same room.
Development studio based in Brazil.
We build websites, apps, and digital products for teams who care about the details as much as we do. Design and engineering happen together here instead of as two handoffs.
The name puts Italian fattura next to Portuguese manufatura: the manufatura of code. We treat process and finish the way a workshop treats them, and still ship at the pace software has to move.
Recent projects
Work we’re glad to put our name on
A few projects where the client gave us room to do the job properly. That tends to show up in the parts nobody demos.
Case study
A course platform for building with AI, still in the studio
Mellofattura’s course platform: build real digital products with AI, from prototype to publication, lesson by lesson. Two courses are live; more are in production.
Case study
Curated agent skills for iOS UX and accessibility
A research-led skills framework that started as a Mackenzie TCC, shipped as an open agent plugin, and is now a Springer-accepted workshop paper, with Camera Ready underway for JIIHC 2026 in Chile.
Services - We work from the first sketch through to production, and stay after launch.
Strategy, design, and engineering sit in the same conversation here. So does the unglamorous work of keeping a product running once it is live.
- Web applications. Real-time web apps in Next.js and TypeScript, with Convex for live data and Clerk handling authentication.
- AI integration and agents. LLM features and agents built into the product with the Agents SDK, Mastra, and models from Anthropic and OpenAI.
- Apple platforms. Native iOS and macOS apps in Swift and SwiftUI, written to behave the way the platform expects rather than the way the web does.
- Cloud infrastructure. Production systems on Vercel with automated deploys, edge performance, and the logging you want at 2am when something breaks.