That would be great.
Automation possibilities like:
- Bring AirTag into the room that has HomePod mini (ultra wideband). Between 15 minutes after sunset and bedtime, turn on the room light.
- At night, AirTag in your pocket at certain distance and direction from the HomePod mini activates the backyard light.
- Accidentally locked the door with AirTag inside the house. Turn on the entrance light as a reminder.
Unfortunately, AirTag is probably a passive device. It's probably transmitting only periodically, or when Find My app is launched (I read that the initial connection may take as much as 30 seconds).