How to pack all Qt libraries into one file to distribute my program?

Question

Qt

Do I need to drag various dlls together in an executable in QT?
How to make it so that there is just an executable without dll and everything works?

Answer 1

1. You can wrap everything in a single installer binary, say InnoSetup.
2. You can link statically, but either provide object files or open source.
All necessary libs are pulled up through windeployqt

Answer 2

Yes need.
If my memory serves me, for completely static linking you need to buy a license.