Wine - Closing Hybrid, since it's running with administrator rights!

[Selur]

But how do I compile vapoursynth-editor?

No clue on arch linux, on ubuntu you need to install Vapoursynth + Qt, call qmake one vapoursynth-editor.pro and then call qmake.
You can ask djcj, he builds the hosts the Ubuntu repository and probably can give you more details.

Cu Selur