IHost is the Sonoff home hub that allows local control and does Zigbee/matter. You can install the Docker image for Node Red in it and their “palette”.
It basically outputs the temperature data which you have to mess around with a bit to extract but then you can trigger whatever you want. Unfortunately you can’t control the TRV in Node Red last time I looked but you can control a virtual TRV which you then just map over to the real TRV using the main interface. Bingo. Now you can have complete control.