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 dbus-x11
x11 : optional
simple interprocess messaging system (X11 deps)
D-Bus is a message bus, used for sending messages between applications.
Conceptually, it fits somewhere in between raw sockets and CORBA in
terms of complexity.
This package contains the dbus-launch utility which is necessary for
packages using a D-Bus session bus.
See the dbus description for more information about D-Bus in general.