Aqara has a clever solution for a vexing Matter problem

The new Matter standard is getting better at helping Alexa, Apple HomeKit, Google Home, and Samsung SmartThings play nice with each other, but it often does so at the expense of finer-grained features. Some Matter-enabled smart lights, for example, can be turned on or off via Matter or change their color, but Matter controllers might not be able to access their lighting scenes or advanced animation modes. Likewise, smart home manufacturer Aqara found some of its hardware functionality hamstrung by Matter's limitations, such as the lack of Matter support for facial recognition (which might arrive once Matter finally works with security cameras), or for the fall-detection capabilities of its motion sensors. One option would be to wait for the Matter specification to catch up and add that functionality--which could take a while, given the slow pace of Matter specification updates. Instead, Aqara built its own workaround, which involves taking various Aqara scenes and "signals" and turning them into virtual sensors that Matter understands.