Vaillant ecoCompact

Hi,
I am now trying the possibilities and application of HA. I have already managed to achieve small things, but more complicated solutions are still a serious problem for me.
Before I get involved, I would like to know if my Vailant ecoCompact/2 heating and hot water boiler can be integrated into the HA and if so, how?

The Vaillant boiler has a VR70 controller, a Multimatic VR700/6 and VR91 operator, and it has a VR920 Internet WiFi module that can be controlled from a mobile phone with the Vaillant Multimac application.

Thanks and Regards