Ok so I was able to install debian sid and now it boots into gnome desktop, but touchscreen is not working. In the manual, that I was partially following, it says that I need to run TSLIB_TSDEVICE=/dev/input/event3 TSLIB_CONFFILE=/etc/ts.conf ts_calibrate
but it shows me error ts_open: No such file or directory

manual: https://elektranox.org/website/debian_on_n900.html#nodm
(That manual is a bit confusing.)
Any ideas why it shows me this error? Thanks in advance.