/etc/xdg/korganizer.knsrc is in korganizer 4:17.12.3-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | [KNewStuff3]
ProvidersUrl=https://autoconfig.kde.org/ocs/providers.xml
Categories=KOrganizer Calendar
TargetDir=korganizer
|