Website looks nice.
I plan to add support for geo-fencing to Traccar soon.
I added a field to the table: "geofences" as well as being a trigger that allows for recording in the "points" to record the geometry in a separate field. Because of this, I have the ability to edit the geofence with the help QGIS.
Well using postgresql with postgis and got some geo-fencing query's running! Also outputting to my storm chasing portal via geojson! Anyone else working on stuff like this ?