My SO helped with the crowdsourced civilian effort to dispatch water rescues of stranded people. The effort is wound down now; it will likely be hailed as a coup of "social media", but that's overhyping the social media aspect. Social media got the word out of where to go online to enter the coordination, but had little to do with the actual coordination itself. The group my SO worked with coordinated mostly through…
If your SO is interested, I'd be really grateful for the opportunity to have a chat with them about their experiences!
We've got a website at https://sempo.ai if you'd like a bit of background...