[TODO] Explore the possibility using `appeal` for CLI processing

[webknjaz]

Today, @larryhastings told @sirosen and me about https://pypi.org/p/appeal. It sounded captivating enough for me to consider it. Let's research it at some point.

[larryhastings]

Let me know if you have any trouble. Maybe email is better; I get so many Github notifications that I've kind of stopped looking at them.

[webknjaz]

Thanks, Larry! We'll tackle the idea a bit later. I just wanted to document the interest in looking at the lib so it's not forgotten.