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Declan Chukwu

HackEurope 2026 · Selected from 5,000+ applicants · Feb 2026 to Feb 2026

@everyone

A distributed rapid-response system that orchestrates parallel Twilio calls to trusted contacts, with Gemini-powered AI situation briefings and priority-based routing.

  • FastAPI
  • Ruby on Rails
  • Twilio
  • Gemini API
  • SQLite
The @everyone team in front of the HackEurope 2026 backdrop at Trinity College Dublin.
The team at HackEurope 2026, Trinity College Dublin.

The brief

HackEurope 2026, selected from more than 5,000 applicants. We built @everyone, a rapid-response system for emergencies where one call isn't enough.

What we built

  • A distributed backend (FastAPI + Ruby on Rails) that orchestrates parallel Twilio calls to a user's trusted contacts simultaneously.
  • Gemini-powered AI situation briefings so each contact who picks up immediately hears what's happening.
  • Priority-based routing to decide who gets called, in what order, and how escalation proceeds.

How it went

The system is live at at-everyone.help, and the source is on GitHub.

I built the parallel call feature, the AI escalation logic, and the AI context briefing.

We didn't place on the podium or take a track, but getting a distributed system to hold together in that room, against that clock, was worth the trip.