[zensavona]

I think what this person is talking about is simplicity in the actual UI pattern, and thinking about them. The problems you mention are JavaScript problems, not UI problems.

Have you ever tried to build a UI with Qt or JUCE?

[bmer]

Isn't JUCE music-app only (or, mostly)? Also, I am having a hard time figuring out whether you are mentioning Qt and JUCE in a positive light, or a negative one...

[coldtea]

JUCE is mostly for music, but otherwise fully flexible UI-wise and with tons of helper stuff for all kinds of things.

And the parent is obviously implying QT/JUCE are much harder to create a GUI than js/html/css/etc.