The root is a Raspbery Pi based "remote" that hooks up via the Wifi and monitors a Robox. It needs presliced files at the moment but slicing an STL is a planned future enhancement. As the root is Pi based you can add anything else custom you want such as a remote power switch for the Robox or a Camera.
https://www.kickstarter.com/projects/robox/root-tree-and-mote-for-robox-micro-manufacturing-p
There is an obvious comparison to be made with the OctoPrint which does support slicing and STL uploads. CEL's automaker software is a bit more sophisticated than Octoprint in that it reads the spool for an ID then loads a custom profile based on the material loaded.
The Mote is a screen to control the Root and the Tree is a flatpack stand to allow you to run a print farm of devices.