> On the music plugin side of things there is a lot of VSTs written in JUCE framework, another good cross-platform UI kit which focused on audio software. Real

> On the music plugin side of things there is a lot of VSTs written in JUCE framework, another good cross-platform UI kit which focused on audio software. Real audio programmer here. I used nw.js (essentially like Electron without the necessity to do IPC for intra-window communication) to port the frontend for a realtime audio engine written in C. Frontend and business logic speak over a socket. No need for JUCE because the UI has no need for JUCE's audio tools. Port could happen extremely fast because of the brilliance of Chromium devtools-- introspection and real time updating of styles/DOM state was a life saver. This was a port from tcl/tk which had (has?) a half-baked theme-ing engine and no easy way to introspect the contents of a Tk Canvas. Qt would have been nice but the frontend is a visual diagram with boxes connected by Bezier curves. QML doesn't have an easy way to do that without the performance scaling with the size of the logical canvas (which is unacceptable because users sometimes want enormous logical canvas sizes).