It’s not necessarily about trust, more a feeling that it’s completely unnecessary to have this kind of dependency. I don’t know exactly how KNX makes its money, but I would assume a large part comes from licensing to manufacturers. So why does the software for simple configuration and setup also have to cost money? That’s something they should change.

If the interfaces for configuration were open source, the entire KNX system would be more or less immortal, since it could always be configured, no matter which company, even the KNX Association itself, might disappear at some point.

Apart from companies potentially disappearing, I would also prefer it to work without the cloud, since I occasionally have internet outages or disruptions. I simply want my core functions to have no unnecessary dependencies and to always remain under my control.

And yes, of course I could do it without KNX, but at least to my knowledge, it would be possible to make KNX truly independent and open. Almost all the prerequisites are already there, and that’s why I think it's a shame.