How to make a desktop shortcut for live session user

I am trying to make my own linux distro based on Ubuntu, and have a different desktop enviroment installed. This desktop enviroment (KDE) does not show Ubiquity in the applications by default, so I want to put the shortcut on the desktop, but I only want this for the live session user, and not for the other users, so putting the shortcut in /etc/skel/Desktop won’t work (also for other users) How can I make sure it’s only for the live session user and not for anybody else?

I’m using the Ubuntu 20.04 Desktop ISO btw

>Solution :

The approach is to actually create the launcher in the skel folder, but then automatically delete this launcher after the OS installation has completed successfully.

1. Create the launcher

   Execute the following in Cubic’s Terminal page:

    mkdir /etc/skel/Desktop
    cp /usr/share/applications/ubiquity.desktop /etc/skel/Desktop/
    chmod +x /etc/skel/Desktop/ubiquity.desktop
    ls -la /etc/skel/Desktop/*
   

2. Delete the launcher after installation

   On Cubic’s Options page, click the Preseed tab, and add the following at the end of the ubuntu.seed file:

    ubiquity ubiquity/success_command string \
        in-target bash -c 'rm -rf /etc/skel/Desktop/ubiquity.desktop'; \
        in-target bash -c 'rm -rf /home/*/Desktop/ubiquity.desktop';