I'm quite unfond of this command suite pattern that seems to be popular in cli apps lately. It's a very git thing to do. Why not just mac-whatever1 mac-whatever2? It has less coupling, basic autocompletion out of the box, and generic autocompletion very easily generatable in a context-free fashion, but less coupling alone should be enough of a reason.
I appreciate your appreciating my jibe. Good luck with your suite and sorry for the little bit of negativity. Command line apps are my favorite type of apps.
No problem! I am glad that you enjoy command line apps as much as I do. Sometimes negativity brings energy to change what needs to be changed. If you see that you have ideas to contribute to the project, I look forward to your contributions!