Home Assistant is a free and open-source software for home automation that is designed to be the central control system for smart home devices with focus on local control and privacy. It can be accessed via a web-based user interface, via companion apps for Android and iOS, or using voice commands via a supported virtual assistant like Google Assistant or Amazon Alexa.
Most voice assistants are associated with major multinatonal corporations and invasive end user license agreements. Voice and other data may be shared with unknown third parties, including governments.
Open source voice assistants work locally and allow for additional control over personal information.