Homeassistant + all Zwave and/or wired KNX devices + Wyoming plug in gives a full voice assistant suite with guaranteed compatibility free from shitty cloud services. The downside is the cost. For that you could go ZigBee with MQTT and have reasonable protection against vendor fuckary
Homeassistant + all Zwave and/or wired KNX devices + Wyoming plug in gives a full voice assistant suite with guaranteed compatibility free from shitty cloud services. The downside is the cost. For that you could go ZigBee with MQTT and have reasonable protection against vendor fuckary