Hi,

When running the example herebelow, from the guix shell documentation, an error is returned:

guix shell --container --network --no-cwd ungoogled-chromium \
  --preserve='^DISPLAY$' -- chromium

[1:14:1118/140039.476338:ERROR:bus.cc(399)] Failed to connect to the bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
Authorization required, but no authorization protocol specified

[1:1:1118/140039.498151:ERROR:ozone_platform_x11.cc(239)] Missing X server or $DISPLAY
[1:1:1118/140039.498166:ERROR:env.cc(255)] The platform failed to initialize.  Exiting.