From Prompt to Production: How I Built "Google Stadium" for Google PromptWars 2026

Have you ever missed the winning goal of a match because you were stuck in a 30-minute line for a hot dog? Managing crowds, vendor logistics, and fan experiences inside a massive stadium is a logistical nightmare. For the Google PromptWars: Virtual 2026 hackathon, I set out to solve this problem. The result is Google Stadium: a real-time, full-stack application that provides seat-direct food delivery, live crowd traffic monitoring, and global stadium communication. But I didn't build it alone. I