Great app! I have some experience with QT (mostly via Python/PyQT) but I want to get started with QML for a new app idea, so this example codebase will come in very handy. Any other resources you can recommend to get started with that?
Hope it helps and you reach your goals! :)
There is also the qmlbook: https://qmlbook.github.io/ that provides all the information you want to know about QML.
We (KDE) recently published a small tutorial about the Kirigami (our QML based convergent tooltip): https://develop.kde.org/docs/kirigami/. And generally taking a look at Plasma Mobile applications is a great learning resource.