That's what the default Mac keyboard layout has been for decades. Just because Microsoft/IBM won the desktop OS wars and forced everyone to use their keyboard layout doesn't mean Mac users have to comply.

I'm used to switching between Mac and PC layouts every day, but I personally prefer the Mac keyboard layout. Command is easier to press with a thumb compared to Ctrl, which requires the pinkie. Option allows you to input special characters with far more ease compared to any PC operating system (e.g Opt + Shift + - for an em-dash compared to some crazy incantation on Windows). Control is still available as an additional modifier if you want it.

A great side-effect of using Cmd as the primary modifier is that shortcuts inside your terminal become simplified. E.g Cmd + C to copy rather than Ctrl + Shift + C, or Cmd + T to open a new tab rather than Ctrl + Shift + T.

In an ideal world, Windows would switch to using the Win key as its primary modifier instead of Ctrl. That would make life so much simpler.