I found dockstarter to be helpful to get me going with docker. https://dockstarter.com

You missed the “optional extra” part of the usb3 cable too

Any chance of adding this to the AUR?

I’ve been playing with dockstarter for a while, found it a really good introduction to docker with a fairly consistent implementation of each container.

Helpful community generally too and lots of choices of software. https://dockstarter.com