Devuan GNU+Linux is a free software operating system for your
computer. Free software means you are free to use, copy
and distribute, study, change the software, and share your
modifications with the community.
software freedom, your way
apt install task-xfce-desktop
tasks : optional
This task package is used to install the Devuan desktop, featuring
the Xfce desktop environment, and with other packages that Devuan users
expect to have available on the desktop.