I am using ark on Debian testing with LXQt, but without 'kinit' I get the following error message, when I click on the 'Extract' button: Unable to create io-slave. Cannot talk to klauncher: The name org.kde.klauncher5 was not provided by any .service files
Please try to set KDE_FORK_SLAVES=1 in your environment. See https://userbase.kde.org/KDE_System_Administration/Environment_Variables#KDE_FORK_SLAVES
Putting KDE_FORK_SLAVES=1 in '/etc/xdg/lxqt/session.conf' under '[Environment]' did help, thank you