We haven’t gone whole-hog into home automation, except for a heating and hot-water controller. In a part of the world with winter, that makes a big difference. The controller I use has a web-based but also offers a nice API. Another good thing about it is that it includes a way to know when we’re in or out of the house, based on mobile phone detection. So I wrote some scripts to manage the system in a nicer way than having a big bunch of static profiles. One of the reasons it works well is that none of it’s AI. Just some event detection and use of the output of one-time runs of optimization algorithms based on our utility provider’s pricing. It’s less flaky than I am about controlling the heating zones, so it’s cut my gas bill by another 10% over the 30% savings we got from installing the controller and running it on a timer with manual override.