Documentation lists integrations with "select partners" -- and that's why this isn't a serious play for the home. You need to work with everything, like HomeAssistant, Control4, etc. to be a serious contender. They have had years to do this, could have got it all lined up with HomeKit + existing iOS devices. People aren't going to rip out their security system just to integrate with your device. But that would require having a non-adversarial relationship with your developer ecosystem. It's frustrating because home integration software is a wasteland. Those that have succeeded in it have understood it's an ecosystem game.