Whether to enable the "sx" pseudo-display manager, which allows users to start manually via the "sx" command from a vt shell. The X server runs under the user's id, not as root. The user must provide a ~/.config/sx/sxrc file containing session startup commands, see sx(1). This is not automatically generated from the desktopManager and windowManager settings. sx doesn't have a way to directly set X server flags, but it can be done by overriding its xorgserver dependency.
option