When deploying my application under linux, where do I put my libraries, executable and the desktop entry file? And what about other files my program needs? For example background pictures, audio files etc.

I heard that I put my executable file in the /usr/bin/ folder, my libraries in the /opt/<myapp>/lib/ folder and my desktop entry file in /usr/share/applications/ folder. Is that correct?

But where is the general place for application resources?

Is that everything I need to care of when deploying my application or are there other steps I am missing?