qubes-installer-qubes-os/initial-setup-launcher/run-initial-setup

#!/bin/bash

IS_GRAPHICAL="$(rpm -q initial-setup-gui >/dev/null 2>&1 && echo "yes" || echo "no")"
WINDOWMANAGER_SCRIPT="/usr/bin/firstboot-windowmanager"
INITIAL_SETUP_SCRIPT="/usr/bin/initial-setup"

# check if graphical Initial Setup is installed
if test "x${IS_GRAPHICAL}" = "xyes"; then
    printf "MESSAGE=starting Initial Setup GUI\nPRIORITY=6" | logger --journald
    /bin/xinit ${WINDOWMANAGER_SCRIPT} ${INITIAL_SETUP_SCRIPT} -- /bin/Xorg :9 -ac -nolisten tcp
else
    printf "MESSAGE=starting Initial Setup TUI\nPRIORITY=6" | logger --journald
    ${INITIAL_SETUP_SCRIPT}
fi

# check if the Initial Setup run was successful by looking at the return code
if [ $? -eq 0 ]; then
    printf "MESSAGE=Initial Setup finished successfully, disabling\nPRIORITY=6" | logger --journald
    /bin/systemctl disable initial-setup.service &>/dev/null
    printf "MESSAGE=Initial Setup has been disabled\nPRIORITY=6" | logger --journald
else
    printf "MESSAGE=Initial Setup failed, keeping enabled\nPRIORITY=3" | logger --journald
fi