Does anyone have any recommendations for configuring emacs so it's easy to use with a standard MacBook keyboard and a full external keyboard?

I used emacs for a couple years on a linux laptop with a full keyboard, and I loved it. Then I got into more teaching than programming, so I moved to some beginner-friendly editors; I wanted to use the same tools I was recommending for my students.

Now I'm doing more dev work again, and I really miss emacs. But I'm a little lost about how to map keys so I can jump between my laptop in standalone mode, my laptop when I have an external keyboard connected, and non-mac linux machines.