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narnau/README.md

Hey, I'm Arnau 👋

Product-minded full-stack engineer based in Barcelona, focused on building and shipping real products end-to-end, from shaping the idea to learning from how real users behave.

What I’m building now

I’m building YapScore

An AI-powered music notation editor that lets you edit and generate sheet music using natural language. Instead of navigating complex notation software, you simply describe what you want:

  • “Transpose the whole piece to G major”
  • “Add a crescendo in measures 4–8”
  • “Write a 16-bar jazz waltz in Bb for piano”

YapScore understands the musical intent, modifies structured score data (MusicXML), renders the updated notation instantly, and provides in-browser MIDI playback. You can export to standard formats compatible with MuseScore, Finale, Sibelius, Dorico, and other notation tools.

What I've been up to

Most recently I was CTO of Anything App, an AI-powered assistant that combines an LLM agent with human operators to handle tasks for busy professionals via WhatsApp. I led the end-to-end build and deployment of the product, working deeply on AI agent architecture, including orchestration, tool use, context management, and designing reliable AI workflows in production.

Before that I co-founded Kavi, a wellness platform connecting influencers with their audiences, something like Patreon for wellness creators. I spent three years talking directly to users and iterating on what they actually needed.

Outside of work

When I’m not coding or thinking about products, I play drums in different music projects. It’s how I stay creative outside the screen 🥁

Pinned Loading

  1. yapscore yapscore Public

    AI-powered music score editor — edit music scores with natural language

    TypeScript 5 1

  2. Ircam-RnD/binauralFIR Ircam-RnD/binauralFIR Public

    Binaural module for the Web Audio API

    JavaScript 145 17

  3. Ircam-RnD/binauralModeled Ircam-RnD/binauralModeled Public

    Binaural synthesis module for the Web Audio API by using modeled HRTFs

    JavaScript 27 6

  4. EventSourcing-Example EventSourcing-Example Public

    EventSourcing C# example

    C#