Homekit

If you're building a HomeKit app or integrating Matter devices, this gets you through the setup fast. It covers the full hierarchy from HMHomeManager down to characteristics, shows how to read and write accessory values, and walks through action sets and triggers for automation. The Matter commissioning section is especially helpful since that's usually where documentation gets thin. One thing to watch: HomeKit loads asynchronously, so you need to wait for the delegate callback before touching any data. The common mistakes section would have been useful to see, but the code samples are clean and the examples cover the real use cases like moving accessories between rooms and enabling notifications for live updates.