Our work - What we've built

Client work and our own products, all live in production. Each case covers the problem, what we built, the stack, our role and the result.

Client work

Projects we built for other companies.

First Look

Backend · AI

The AI backend that analyses screenplays for First Look

First Look is a screenplay marketplace with AI-assisted story analysis. We built the backend that reads each screenplay PDF, structures it into scenes, characters and metrics, and generates coverage: the professional evaluation of the script.

Prompts are versioned, scoring is calibrated so grades are comparable across scripts, and when a PDF can’t be read as text the system falls back to vision-based analysis.

  • GPT-4o
  • MySQL
  • Linux

CDC

Mobile app · Backend

The app that connects CDC’s drivers with the company

We built the app around 100 CDC drivers use every day, shipped to the App Store and Google Play from a single React Native and Expo codebase.

The company works from a web panel, its central control and reconciliation system, and everything runs on our own Bun and Hono backend, deployed on Fly.io.

  • React Native
  • Expo
  • Bun
  • Hono
  • Fly.io

Única FM 94.5

Web development · Live streaming · Digital identity

Chivilcoy's radio station live, on any device

Única FM 94.5 is a radio station in Chivilcoy, Buenos Aires, broadcasting live 24 hours a day. Before working with us they had no digital presence of their own.

We developed their full site: an integrated live-streaming player, consistent brand design, structured data for Google, WhatsApp sharing, and deployment on a dedicated domain under chivil.co.

  • Icecast
  • Cloudflare
  • Hono
  • PostgreSQL
  • Vercel

Our own products

Products we design, build and run ourselves. They're also where we try things first before using them with clients.

The engine behind them

ALLIE, our adaptive assessment engine

Trivorio, Trivias.de and Inglexam run on ALLIE, a multi-tenant adaptive assessment engine. Each product is an isolated tenant in PostgreSQL with Row Level Security, so a new product reuses the same engine without mixing data with the others.

  • PostgreSQL
  • Row Level Security
  • Multi-tenant

Inglexam

Own product · Product design, Web, Content

An adaptive English level test built for Spanish speakers

Inglexam is a free English placement test for Spanish speakers. It adapts to each answer, places the learner on the A1–C2 scale and explains every mistake in Spanish.

It runs on ALLIE, our adaptive assessment engine, and turns the result into level guides to keep practising.

  • ALLIE
  • PostgreSQL
  • React
  • Hono
  • Vercel
  • Fly.io

Trivias.de

Own product · Product design, Web, AI

Spanish-language trivia, generated and fact-checked by an AI pipeline

Trivias.de is a free trivia platform in Spanish covering sports, film, TV, music, history and culture. Anyone can play without an account; players who sign up save progress and compete on each quiz’s leaderboard.

Every quiz is generated by a pipeline using Claude with web search, goes through a second verification pass and an automatic validator before it’s published. Social reels are produced automatically with Remotion.

  • Claude API
  • Remotion
  • ALLIE
  • React
  • Hono
  • PostgreSQL
  • Vercel
  • Fly.io

Trivorio

In-house product · Web development, SEO, Infrastructure

Pass your driving test by practicing online, province by province

Trivorio is a platform to practice the theory exam for the Argentine driver’s license, with quizzes tailored to each province’s regulations.

We built it end to end: a fast, SEO-optimised site covering 15 provinces plus Buenos Aires City, with its own backend, a waitlist system and automated emails — shipped through a CI/CD pipeline that validates every change before it reaches production.

  • Next.js
  • Hono
  • Bun
  • PostgreSQL
  • ALLIE
Contact

Have a project in mind? Let's talk.

We start with a 30-minute call: you tell us what you want to achieve, and we tell you whether we can help and how. Eduardo replies personally.