You can control your rooted Toon using homekit if you have "homebridge" running.
Homebridge can be run on several kinds of machines like a Raspberry, PC/MAC or via docker on your Synology NAS (not all of them, see https://www.synology.com/nl-nl/dsm/packages/Docker),
see http://www.homebridge.io
If you have installed homebridge you need to install/run a plugin called "homebridge-rootedtoon" and add a few configs,
see https://github.com/byrobin81/homebridge-rootedtoon
I have homebridge running on a I think over 10 year old Raspberry, which works fine (it is slow when you have to reboot, but no problem what so ever).
In homekit you will get a simple thermostat, kind of like the old Honeywell turning-knobs

Including voice control by Siri.
Stole a picture, could not upload 1


Ron.