There is a list of Bridge Devices that are supported Homey (cloud / bridge version), a selection of available apps (WIKI)
With a link to the test channel.
You are quite correct about limiting issues with users, my bad.
May I ask - does the Eurotronic Spirit App allow Direct control and direct management the Valve?
It has been the only way I have been able to get them reliable if I control them directly.
Thanks for you effort in doing this.