When a new user register using it's montpellier-techhub.org, we should add him to admins. TODO: this involve changing the deploy script as we'll need to deploy some serverless stuff at the same time - [ ] Trigger a cloud function on user creating + update 'permissions' with the user if email valid. [Help here](https://firebase.google.com/docs/functions/auth-events?authuser=0) - [ ] figure out the deploy we need to do.
When a new user register using it's montpellier-techhub.org, we should add him to admins.
TODO: this involve changing the deploy script as we'll need to deploy some serverless stuff at the same time