OSX Calibre server app

Hello,

I'm new here, and first of all , I want to thank the creator of Calibre software.

I have no knowledge in programming, but I'd like to have calibre server as a stand alone app, or just the calibre server opening automaticly at boot time.
I am on Maveriks on one MacbookPro and on Sierra on another one.

Can you please help me with (very) simple instructions to do that ?

Thank you very much.