I purchased a few new Tile Mate tags and was trying to figure out how to use them to tie in to Hubitat presence. I did some looking and someone had something similar with Domoticz, so I took this and adapted it to Hubitat, and re-used most of a presence app I wrote for Geofency.
I have a bunch of these lying around that have expired batteries; so I've popped them open, put batteries in them, and printed new cases from Thingiverse. Drop one in your kids bookbag, in your car (assuming you have a pi zero nearby to sense it).
I consider this beta for now, and it requires a Linux system with a BTLE device, and that Linux system has to be within range of the devices you wish to track. Worst case, you invest in a Pi Zero W for each area you want to track access.
NOTE: If you follow instructions for Domoticz, make sure you use the scripts from my repo as they have been tweaked to this implementation.