I copied my .zshrc from my Linux laptop to my work Mac, and yep, it all feels the same. A few minor differences (ls on Linux will allow arguments after the files, on Mac it won’t) and a few things to learn (I never really used open on Linux, but it’s essential on Mac), and the clipboard interface is different (xclip vs. pbcopy — but that doesn’t really count, since it’s a GUI thing).