There’s a version that is an infra-red remote control that sends codes when you make a gesture.
I’m pretty sure somewhere on this forum I saw someone using it with a Broadlink IR receiver. You could also use an ESPHome IR receiver, or a Global Cache IR receiver.
Once you have the ability to receive IR codes in home assistant it is easy enough to trigger automations.
The bigger issue is that this device is apparently quite difficult to use. Read some reviews on Amazon. The difference between gestures is very difficult to get correct and often sends the wrong command.
EDIT: found it: Casting magic with a Kymera Wand