A framework for notification (geofencing)

It would be good to have a framework to notify users based on their location. Currently, it is possible to see geofencing only in the forms when you try to capture new data.

A new notification framework can inform users about their position in connection with some other existing layers. Real-life example of such use-cases are:

• Users enters a hazardous zone: there will be a hazard zone polygon and the app will notify users if their GPS falls within the polygon
• Users exceed a certain speed: e.g. in navigation, a boat exceeds a certain speed limit and users get notified about the speed restriction within a polygon.
• Combined with tracking options: two users are within the same area.

The configuration for these geometry aggregation with GPS can be set in the MM QGIS plugin. A notification aggregator can be also added (as a GeoPackage) and synced with the MM server, so the admins can possibly hook it up with their own server to take some actions.

No files, tests, or entry points are named. Start by mapping the existing geofencing shown in forms and the tracking and synchronization paths in the mobile app. Define the notification framework's scope, configuration flow from the MM QGIS plugin, GeoPackage synchronization, and notification behavior before implementation.