got it to work on a Xubuntu from 2020 in a virtual machine on my older Linux. It won't compile on the older Linux, because LIBGC is too old. Anyway, just sent some pictures and received them myself.
Setup: TX: Elecraft K3 in DataMode, 70cm-Transverter, LZ5HP-Transverter.
RX: Amsat Downconverter -vy old Model- , 2m-Transverter, Kenwood TS-850, USB-Soundcard. Of course this will not be the ultimate setup. Will try to use it on a Raspi4 . With this setup, 6000 8APSK is possible. To me it was important to see how my TX will work in the first place. Now that i know i can transmit, i will refine RX. CU