yes, I use home assistant cause I don't need any cloud based stuff for it to work, though I did have to buy a raspi and a zigbee stick to run it on (or if you have some extra hardware laying about, I just like having it separated from my other stuff). I have a few cloud based things attached to it, but I'm selective and don't buy things where essential functionality requires it, but it's a extra & optional feature on something I was going to buy anyways (and that I don't care if data is shared on, like my automatic litter box dump box being full).