Librem5 image 1985 (solved evolution)

I’m trying to use the image of Librem5, last exit n.1985, to get familiar before it arrives.
How to install your own language was kindly explained.
I would like to install evolution but I get a GTK error + “driver not found”: suggestions on what should be installed?
I would also like to understand how to add favorite applications to the home bar.

The resolution for me was to start it like this:
$ GDK_BACKEND=x11 evolution