docopt CLI library used by apkg is fabulous for manual CLI design and prototyping but I've found several issues: * looks dead, last release 2018 :( * requires manual args translation (extra code) * lacks automation features * not really composable, no sub-command support (I got around that but it isn't always pretty) Seeing that `apkg` core CLI has reached a fair level of consistency and stability, I think it's time to move to a more dynamic CLI framework. After doing some research, [click](https://click.palletsprojects.com/) seems like best alternative. It even correctly describes my docopt woes in [Why not Docopt etc.?](https://click.palletsprojects.com/en/8.0.x/why/#why-not-docopt-etc) docs. I've tried to create a composable lazy-loading python CLI many times and authors are obviously aware of issues this task presents. My experiments with click have been quite satisfactory so far.