RareFinder
A crowdsourced tracker for scarce goods: report a sighting, earn trust, post a bounty.
The problem
In a shortage, nobody knows which shop still has fuel or medicine, and rumours spread faster than facts.
The approach
Sightings need to be within 50 m of the shop; a trust-points economy rewards reports that others confirm; bounties pay for hard-to-find items. SwiftUI and MapKit on iOS; FastAPI, PostgreSQL and object storage behind it.
What stands out
- Trust-points economy and 50-metre geofence keep reports honest.