for devmountain folks
these will tend towards the sysadmin/nix/vcs side of things
use them! download them! take them! do something like
git clone https://github.com/zacanger/cheat-sheets-etc ~/doc
so they're always around!
all the markdown files are either original or rewritten/combined bits and pieces from other people
all the graphics should probably not be in here, since they're totally not mine