I built an open-source real-time emergency alert map for Spain
Hey! I just launched ESPAlert, a free and open-source platform that puts weather warnings, earthquakes, traffic incidents and civil protection alerts on a single interactive map — all from official Spanish sources (AEMET, IGN, DGT, MeteoAlarm).
The map updates in real time via WebSockets. No app needed, just a browser.
One thing I'm particularly proud of: it includes a Meshtastic LoRa mesh radio integration, so alerts can still reach people even when mobile networks are down — something that became very relevant during the 2024 Valencia floods.
It's fully open-source (AGPL-3.0), self-hostable, and built to eventually expand beyond Spain to cover the rest of Europe.