This is so cool. It will be available on Apple’s upcoming iOS 15 this fall.
Taken from Engadget … Since iOS 13.6 and watchOS 6.2.8, Apple has let use your iPhone and Apple Watch as digital car key. Come iOS 15, a new tool called Home Keys will let you do the same with a compatible smart lock to your home. It’s one of several smart home-related features Apple showed off during WWDC 2021.
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For the first time, Apple is opening up Siri to third-party HomeKit accessory makers. The company showed off the digital assistant working working with an Ecobee thermostat. Based on the demo, it appears Apple will direct through requests through its servers, making it so that third-party manufacturers won’t have the ability to see your voice commands.
Source: Engadget