The system-config-printer command is not found and is not available through yum. My program needs to run the system graphical printer setup command. Is "gsd-printer" equivalent? (I am remote and unable to make x11vnc work even with Wayland off so I cannot test it).
UPDATE
I asked my co-worker to run printer setup. I think it was started from gnome-control-center (which has a printers panel argument). But we are using sddm for the display manager.
41 Answer
We can now run gnome-control-center panels without switching to Gnome.
XDG_CURRENT_DESKTOP=GNOME NO_AT_BRIDGE=1 gnome-control-center $PANEL
I have tested PANEL="printers" or "datetime". One glitch is that you can switch from datetime to printers.
I used the "...localauthority..." solution.
The policy files were in "/usr/share/polkit-1/actions" for the Action= line.
I set permissions, owner and group in "/usr/share/applications/" to control panel availability.
