BI and Synology 220+ Windows 10 VM

The CPU is Intel Celeron J4025 2GB memory, running synology + windows on 2 Gb ram. You would need the big Synology for an VM.
 
If you are at the point of running Blue Iris on a Synology NAS, I would question why you don't just purchase the Synology NVR solution.

and if you are willing to buy a Synology NVR... then instead buy another PC to run Blue Iris.