I want to save disk space (SSD) as well as maven processing time. I have however the impression that my command line maven (on Arch Linux installed with package manager pacman) and my Eclipse Maven plugin don't work together, because I have both a big ~/.m2 folder (2GB) as well as a big workspace/.metadata/.plugins/org.eclipse.m2e.core folder (500 MB).
Is my impression correct that they are separated and thus do everything the other did again, wasting both space and time, and if yes, is there a way to connect these two together?