I have tested this now on my QNAP TS-453Mini, and it installs and runs without any problem.
Remember to install the Java SDK first; QJDK8 1.8.71 which can be found in the App store.
However, I found one "problem"; During a reboot, all settings, including users, library scan info, stats and everything is wiped out. It seems this is stored in RAMdisk somewhere and get lost during reboot.
I did not have this problem with version 1.0 officially released from QNAP.
Does someone have a fix for this this so that dynamic data is stored on harddisk instead of RAMdisk ?