I am almost ready with the Rasperry setup. I have flashed the openhabian sd and I will install it tomorrow, so I will indeed start to play with openhab without the myhome hw installed. At the moment I have just laid down the bus cable in the whole house but I have also to explore the myhome environment, so at the beginning I will keep the two projects separated until I am a little more confident with them. Anyway, I am ready to start the fun part!
Echo will arrive at Christmas, and that is another story.
About my java programming skill … I wrote a java applet about 10 years ago with the Java Developer Kit. So at least I am a bit rusty, especially if I have to write from scratch! But I think I can develop and debug an existing code without much effort.
Can you point me at some openhab tutorial to start with? Maybe something related to the alexa voice interface?
Final question, I am about to buy a few Netatmo valves with their hub, to control single radiators (unfortunately we have a central heating system). I have seen that the new Living-now radio setup is integrated with Netatmo (which seems to have been bought by Legrand, btw) but I am not so sure about the integration with the wired myhome setup. What about the integration between a wired myhome setup (controlled via myhome_up app) and Netatmo valves?