Yeah that’s the case with programming… well anything. This at least gives you a way to automatically receive all of that data from any app without excessive prior knowledge. With a small amount of info you can filter for specific events and create all kinds of robust functionality. That’s the power of a set protocol - it is to make things widely compatible with one another by only depending on the dbus protocol and app name. Otherwise you may need to depend on some shared objects which makes deployment and maintenance a total clusterfuck.