Hi Sanjiv,
Running a full Roon with GUI user interface on a QNAP will be an issue as the QNAP VM does not support the display synchronisation that the Roon GUI requires. However, some on here have install RoonServer (with is Roon but without the GUI interface).
Once installed it is controlled by RoomRemote (which provides the GUI interface) on devices such as PC, Mac, iPad, iPad, Android. Check the Roon Knowledge Base for supported devices.
Have a read of [How To] RoonServer on QNAP NAS in which Mark describes installing both a Windows VM and direct Linux.