🧠Our Project: Silent SOS – A Gesture/Voice-Based Emergency Alert System

At the heart of every hackathon lies a purpose—to innovate, solve real problems, and build something impactful in record time. For our team, that purpose took the form of Silent SOS, a safety-focused web application that uses gesture and voice triggers to silently raise emergency alerts.

With growing concerns about personal safety and harassment, especially in public or isolated spaces, we wanted to create a discreet and fast emergency alert system—without needing to unlock a phone or type anything.

🔧** Tech Stack + Bolt Integration**

We built our project using:

Frontend: HTML, CSS, JavaScript (Vanilla)

Backend: Node.js + Express

Database: MongoDB

Realtime Alert System: Bolt API for sending instant alerts (notifications, webhooks, and integrations)

Bolt made a huge difference by allowing us to send fast, reliable emergency alerts, integrating seamlessly with our backend using webhooks and trigger-based flows.

⚙️ How SilentSOS Works

Voice or Gesture Recognition: Detects predefined gestures or trigger words like “Help!” using Web Speech API and Hand Detection Models.

Silent Alert: Sends data to our backend with location & timestamp.

Bolt Trigger: Instantly pushes alert via SMS/Discord/Webhook to saved contacts using Bolt.

Live Dashboard: Admin panel to view active alerts and track responses.

💡Challenges We Faced

Gesture Accuracy: Calibrating for different lighting and hand sizes.

Silent Triggers: Ensuring no UI popups so the alert remains hidden.

Bolt Webhook Timing: Syncing real-time data with the alert system.

Breakthrough moment: When Bolt successfully triggered a live SMS and webhook alert with just a gesture in under 3 seconds.

⭐ Favorite Bolt Features

🔔 Real-time Webhook Triggers – Lightning-fast and developer-friendly

🧩 Easy to integrate – No lengthy setup, minimal code required

📡 Reliable delivery – Worked every time under load

👥 Team Members

on behalf of the team.

🎯 *What We Learned *

How to balance UX with urgency in safety apps

Integrating Bolt APIs for real-time use cases

Working collaboratively under pressure and making quick architectural decisions

💬 Final Thoughts

Participating in this hackathon was more than just coding—it was about building with purpose. Bolt’s simplicity and power enabled us to create something potentially life-saving. We're excited to continue improving SilentSOS, adding more AI capabilities and mobile support.

Let’s continue building for impact, with speed and safety.

Hackathon #BoltHackathon #DevChallenge #SilentSOS #WebDev #AI #EmergencyTech