Crowd-sourced LPG cylinder availability tracker for India's gas crisis

India is in the middle of a severe LPG cooking gas shortage — the West Asia conflict has choked the Strait of Hormuz, which carries 90% of India's LPG imports. Refill wait times have stretched to 20-25 days, people are standing in line for 8+ hours, and you have no way of knowing if your local agency even has cylinders before you show up.

I built this over the weekend. It's a map-based tool that shows gas agencies near you (Indane, HP, Bharat Gas) with real-time availability status reported by other users. The idea is simple: if one person reports "out of stock" or "available, short queue," it saves hundreds of others a wasted trip.

Tech stack: React 19, Vite, Tailwind v4, Google Maps Places API, Supabase (Postgres + Auth + Realtime + Edge Functions), deployed on Vercel. Realtime updates via WebSocket subscriptions - no polling. Auth is Google OAuth through Supabase. Anyone can check status without signing in; sign-in is only required to submit reports.

Cold start problem is real - the tool is only useful once people start reporting. But given the scale of the crisis (88 lakh bookings in a single day last week), I'm hoping the need is strong enough to bootstrap it.