I'm working on a 3D print + PCB device that turn off/on Airtags periodically. This way, it re-purpose the airtag into a good theft-tracking device (and not just a i-don'know-where-my-keys-are-device). Apple impletemented notifications because a few sktechy people used it to track people. But the downside is it can warn thieves as well. Turning off the Airtag ensure the iphone does not see the device enought to enable warning.