ich777/un-get ? reverse-engineered prompt

Build me a simple unRAID command line tool called un get that helps install Slackware packages on an unRAID server.

I want it to work from the terminal, show clear help when I run un get --help, and let me install packages from a package source list. It should only install packages that are not already on the system, and only remove packages that were installed by this tool. I also want to be able to add other Slackware style repositories by editing a sources list file in the plugin config area, one URL per line.

Make it feel safe for advanced users, with clear messages about what it is doing and what it will not touch. If there are any edge cases or current docs that would help, look them up online if needed.