How do you build a real-time stadium dashboard under 1MB?

Ditch frameworks: Vanilla JS + CSS Grid + inline SVGs. Backend: FastAPI WebSockets for state sync. No polling, pure broadcasts.

What's the smart routing in stadium management?

Browser algo scans alternatives on red thresholds (15+ mins), calcs distance, suggests paths. ADA mode adds accessibility penalties.

Can Vanilla JS handle real-time apps like this?

Absolutely—proven here with zero-latency updates and simulations at 5x speed. Frameworks optional for speed demons.

📦 Open Source Projects

Under 1MB: The Vanilla JS Dashboard Conquering Stadium Chaos

Picture halftime at a packed stadium: endless bathroom queues, burger famine. Now imagine a lean dashboard that reroutes crowds in real-time, all under 1MB—no React, no bloat.

Open Source Beat Apr 11, 2026 3 min read

Real-time stadium management dashboard showing wait times and smart routes under 1MB

⚡ Key Takeaways

Under 1MB dashboard uses Vanilla JS and WebSockets for instant stadium crowd redistribution. 𝕏
Smart routing engine suggests optimal paths, with ADA-inclusive logic. 𝕏
Simulation at 5x speed demos real-world bottlenecks, proving lean tech's power. 𝕏

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Open Source Beat

Community-driven. Code-first.

#Vanilla JS #WebSockets #fastapi #real-time dashboard #stadium management

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Originally reported by Dev.to

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