We implemented a PoC for an alert system, e.g. highwater alerts by the state. nostr could be used as critical infrastructure for emergencies because it would not fail at one central point.
Discussion
My company (in this case mostly me) are contemplating joining a thematically related hackathon in cologne in November: https://www.eventbrite.de/e/hackathonpmrexpo-2023-powered-by-corevas-tickets-677240533667
I‘ll ask around in my company. I myself cannot come to Köln.