Question about emacs and mac keyboard customization

Hello applevis,
I started to tinker with emacs by reading its documentation and notice somthing very obvious, macos keystrokes are derived from those of emacs. I just have a question. If we take into account the existence of the option key commander with voiceover, and macbooks having one key control at the left, for those who use emacs on similar keyboards, did you modify any of the key to have two controls like replacing the right command key with right control? Or any other tip you might give me...