#Reallllly basic bash CLI for Remember the Milk
The only thing you'll need to install is jq, for working with JSON in bash. Of course, you can always figure out the XML stuff, but... It isn't like that's necessarily easier. Sort of a 'pick your poison' situation.
You'll also need your own API keys because I haven't included mine here.
I think other than jq, all other tools are the ones you generally find in a *nix environment.
Also noteworthy is that, yeah, I make pretty consistent use of the /tmp/ dir. Sue me, I find it easier and all the files are small and get cleaned out whenever you reboot.