Using CMake to build more complex Qt applications is not very well documented right now.

https://doc.qt.io/qt-5/cmake-manual.html would benefit from a complete example of an Qt application that:

• contains an application
• links to a library
• depends on a custom QML module
• can be build accross all major Qt platforms (Windows, MacOS, Linux, iOS and Android)

The example should cover also deployment.

(Original suggestion from https://www.qt.io/blog/porting-from-qt-5-to-qt-6-using-qt5compat-library)