While I agree that the home page and navigation could be better structured, there is at least a Basic Concepts page linked in the sidebar. That page links to much more helpful description: https://tensegritywiki.com/index.php?title=Tensegrity
I use https://www.chezmoi.io/, which deals with that with templates and/or scripts. It's very flexible, so it can feel overkill, but I'm very fond of it.
It is ironic, but MIT license definitely does not require attribution from websites using the code on the backend (otherwise you'd see a rather large attribution list at the bottom of Google.com or any website...)
I'm not the parent, but I did something similar. It's an editor for fractal flames where the UI is done in QML and rendering and generation is done in C++ and OpenGL. https://github.com/chaoskit/chaoskit
I liked that QML allowed me to iterate quickly on the UI. It was really quick to just compose a bunch of components together and have something working. I also enjoyed the integration with the C++ side. Overall I found QML pretty solid. If I'd build a desktop app again, I'd definitely consider it.
It's an editor and renderer for Fractal Flames[1] written in C++17 with a UI in Qt/QML. Other software that renders Fractal Flames is e.g. Electric Sheep[2] or Apophysis[3].
It's a project that I've been working on and off for 10 years and it's still not ready… Reimplementing it several times certainly didn't help, but I learned a lot in the process! It's grown from a simple for loop to basically a language interpreter.
Sorry for the lack of README or license, but this is still half-baked. I want to release and open-source it one day though.
If you want to develop native-looking or information-dense UIs, Qt Widgets is the way to go. If you want to create a more Electron-like UI or develop something for mobile devices, I'd go with Qt Quick.
It's also possible to combine both by embedding a QQuickWidget[0] inside a Qt Widgets application.
If you want to get an idea about what both solutions provide, take a look at the examples for Qt Quick[1] and Qt Widgets[2]. Especially Qt Quick Controls[3] are useful to see what UI controls are available in Qt Quick.
I'm working on a desktop app in Qt Quick using QML and C++. Happy to elaborate if there's interest.
Over 10 years ago, it inspired me to play with strange attractors, which eventually ended with me writing https://github.com/chaoskit/chaoskit.
It was fun and I learned a lot, but it's definitely a deep rabbit hole. I've moved on since then.