I set up Google Home on my HA instance. The process is quite convoluted but extremely well documented. You must just accept to click, click, next etc. without understanding what you are doing.
I usually use my smart buttons but when I am in the living room and want to open the roller shutters in my children's rooms what it is noon and they are still in bed I have three choices:
1. go to their room and die because I will step on something and fall in the dark. I may also step on undefined things that should not be there. This is not a place I go to without a hazmat suit.
2. open my HA application on my ... phone which should be somewhere around or I may also go the computer which is nearby and .. ah, I have to log in, blah blah blah, it is now 13:00.
3. say "hey google open shutter michael", to which the Google Mini Lady yells (I do not know why she is yelling when she answers) "yes of course boss, I am doing it".
I may sometimes switch on the light in the living room instead because she will misunderstand but hey, it was quick.