Can you run this on the Jolla??? My problem with modern portable electronics is that, honestly, they aren't general-purpose computing devices any more; the manufacturers do everything they can, physically and legally, to restrict you from using the device in any manner not specifically authorized by them. And replacing the GUI is definitely not authorized by any manufacturer I know of...

(I would imagine that Jolla would not have any interest in allowing you to use a different GUI, as pretty much the only product Jolla has to sell is their GUI... )