Wow, looks great. Just a quick general recommendations:

You should give a direct curl to an install.sh to provide a simpler installation step for you tool and besides I think it would be good to publish it on home brew for MacOS users.

This post came in a good moment because I am developing a CLI and I want to add some interactivity to it in the next major version and in some way your CLI has helped me with that.

This is my CLI (https://github.com/elC0mpa/aws-doctor)

There you can check how I implemented the home brew distribution and the install.sh file for the easy installation step