Wizard's Tower

Projects

One artifact glows at the top of the tower. The rest live on the shelf.

Beyou

A free, gamified habit and routine manager, running as a real production.

One TypeScript core, two clients: React on the web and React Native on Android, sharing state, API layer and i18n as source in a monorepo.

An AI agent with 33 tools operates the user's real data, on a fallback chain of free-tier LLMs. Running cost so far: zero.

Self-hosted on the laptop I learned to code on, behind a Cloudflare Tunnel with zero open ports.

Watched by a full observability stack: Prometheus, Grafana, Loki and GlitchTip, in dev and in prod.

Older artifacts, kept with care.

Reactive Spring Boot service that drinks from the Bitcoin blockchain WebSocket into MongoDB through a queue.

Fraud-detection API for card transactions using vector search, built for the Rinha de Backend challenge.

The insane and simple algorithm that generates infinite books.

A tiny markdown editor and renderer for Linux.

A small desktop pomodoro to keep focus honest.

The ancestor. Beyou's first form, kept as a relic.