I know there are already many other questions asked about LGPL requirements, but none of those did match my case
I want to distribute a free application which uses a LGPL-licensed library (Qt)
Assuming I linked statically, do I have to supply the sources with the application? If yes, is a link to a repository (GitHub) enough?
And where should I mention the application is LGPL-licensed? Is a simple "About" window with the default snippet enough? Or do I have absolutely to include a LICENSE file?