←back to building
02winnerOct 2025

Beacon (Tabby)

Won the aci.dev challenge and €500 at the Big Berlin Hack. Built an AI assistant that actually connects your tools - email, Slack, SMS, voice briefs. One conversation, multiple actions. Most AI lives in isolation; this one doesn't.

View on GitHub →

The Insight

Most AI tools live in isolation. ChatGPT can't email you. Claude can't send Slack messages. Your tools don't talk to each other.

What I Built

An AI assistant that connects everything through MCP (Model Context Protocol):

  • Chat with your finance data
  • Send yourself emails, Slack messages, SMS
  • Get daily audio briefs
  • Process documents instantly

    • The Hackathon

    Big Berlin Hack. Built it in a weekend. Won the aci.dev challenge and €500.

    Tech Stack

  • Next.js 15 + React 19
  • Gemini 2.5 Flash + OpenAI
  • Unified MCP Gateway
  • Cartesia for voice synthesis
    • beacon (tabby)02