HomeKit Control home automation accessories and commission Matter devices. HomeKit manages the home/room/accessory model, action sets, and triggers. MatterSupport handles device commissioning into your ecosystem. Targets Swift 6.3 / iOS 26+. Contents - Setup - HomeKit Data Model - Managing Accessories - Reading and Writing Characteristics - Action Sets and Triggers - Matter Commissioning - MatterAddDeviceExtensionRequestHandler - Common Mistakes - Review Checklist - References Setup HomeKit Configuration 1. Enable the HomeKit capability in Xcode (Signing & Capabilities) 2. Add to Info.plist:…