What are the differences between Home Assistant and HomeKit?

Home Assistant is a Python-based, open-source smart home system that supports smart home devices of multiple brands, helping you easily implement voice control and automation of devices. Home Assistant is an open-source platform mainly used for individual fanciers. It cannot be put into commercial use. HomeKit is a smart home platform released by Apple in 2014. HomeKit can also connect to and run based on Home Assistant. Fanciers can use HomeKit and Tuya components to develop software code to control smart home devices by Siri.