Looking for smart home tools

I would suggest you to use Node Red as backend and Home Assistant as frontend. With Node Red you have a very robust system that survives years of updates without problem (I've been running for...mmm...maybe 7/8 years and no update have ever broken anything, while I read all over stories of Home Assistant breaking over updates). Node Red has node for about anything, you can make your home automation product/brand independent using MQTT, so Node Red collects all the sensors/actuators and sends to HA what's needed. If tomorrow you'll change a device, all you have to do is connect a couple of nodes and use the same MQTT topic as you did with the previous device (I don't know if I explained myself...sorry!) If tomorrow you'll want to switch from HA to something else, it will be pretty easy with Node Red in the back! All of this, clearly, IMHO!