Beat the Stadium Rush: Building a Real-Time Fan Dashboard built using Antigravity

Abhisek Padhy — Wed, 29 Apr 2026 07:03:43 +0000

Why We Always Miss the First Ball of the 2nd Innings: A First-Look at Agentic Stadium Tech 🍔🏏

This is a submission for the Google Cloud NEXT Writing Challenge

We’ve all been there. You’re stuck in a massive food queue or navigating a packed restroom corridor at the stadium, only to hear the crowd roar because a wicket just fell. By the time you get back to your seat, you've missed the first ball of the second innings.

Live sports are high-octane, but the stadium experience often feels "offline." I built CricSync to bridge that gap and fix the "Stadium Rush."

Introducing CricSync 🏟️
CricSync is a real-time fan dashboard designed to handle the high-stress, high-concurrency environment of a live cricket match. It provides fans with the data they need to make split-second decisions during those short breaks.

🛠 The Tech Stack
Core Framework: Antigravity

Backend: Node.js

Real-Time Engine: Socket.io

Frontend: Vanilla JS & CSS (High-contrast UI)

Key Features & Technical Deep Dive

Rapid Development with Antigravity
Using Antigravity allowed for a highly responsive architecture. It streamlined the way the dashboard handles state changes, ensuring that as soon as the backend pushes a "Wait Time" update, the UI reflects it without a hitch.
Smart Scaling with Socket.io "Rooms"
In a stadium with 50,000+ people, sending every update to every fan is inefficient. I used Socket.io Rooms to deliver stand-specific data.

How it works: Fans "join" a room based on their seating area (e.g., South Stand). Updates for restroom occupancy or food stall wait times are only broadcast to that specific room, significantly reducing the payload on the client.

The Match Pulse (Synced Countdowns)
Strategic Timeouts are exactly 2 minutes and 30 seconds. Every second counts when you're running for snacks. CricSync features a global synced countdown that ensures every fan sees the exact same time remaining, down to the millisecond.
Flash-Sync: Low-Latency Engagement ⚡
To elevate the atmosphere, I implemented Flash-Sync. When a major event happens (like a wicket or a 6), a low-latency signal triggers a synchronized light show across every connected fan's phone simultaneously.

Designing for High-Stress Environments
UX isn't just about colors; it's about context.

Night Mode by Default: As seen in image_b47100.png, I used a high-contrast, dark-themed UI to ensure visibility during night matches without blinding the user.

Glanceable Data: Large typography and color-coded indicators (Red/Yellow/Green) for gate density and wait times let fans get the info they need in under 2 seconds.

🔗 Check out the project: [https://lnkd.in/gkuzR8n6 / https://lnkd.in/g94hW9VF]

antigravity #GoogleCloud #CloudRun #ReactJS #WebDevelopment #Docker

SoftwareEngineering #SportsTech

DEV Community: Abhisek Padhy

Beat the Stadium Rush: Building a Real-Time Fan Dashboard built using Antigravity

antigravity #GoogleCloud #CloudRun #ReactJS #WebDevelopment #Docker

SoftwareEngineering #SportsTech