Questions to discuss - HitchhikifyTeam/hitchhikify GitHub Wiki
[Let's not remove questions after the problem is solved. Let's document decisions and rationale behind them as Mr. Becker taught us!]
What is special in the SOS button. How is it different from just sending current location in facebook messenger and chatting in messenger?
Maybe the app can send SOS request itself if certain conditions are met (e.g. all the hitchhikers that share a trip are offline for a long time) Also before starting a new ride, the user can enter the car plate number, so that it can be sent along with emergency (SOS) request. But it won't be stored in the DB forever. (need to think about it)