We has a bug. wir haben einen Käfer
Unfortunately a config file did not make it onto the image as we had planned. Libinput is the new way to handle input devices. It was developed in the light of the upcoming Wayland display protocol. We wanted to ship a custom version of libinput.conf, so all touchpads would be able top perform taps and other actions out of the box. That file is missing in /etc/X11/xorg.conf.d. There is a generic version though in /usr/share/X11/xorg.conf.d/ called 40-libinput.conf.
If you have problems with your touchpad, for now please have a look at:
https://forum.siduction.org/index.php?topic=6180.msg50948#msg50948Sorry for the hassle.