ntopng guys created a plugin based on the version I added to plugins and it offers the latest and greatest code, instead of the older binary from FreeBSD ports.
You also can switch between community features or add your license key and run enterprise version.
So goog to see a second vendor after Sensei / SunnyValley to join the party:
https://www.ntop.org/guides/ntopng/third_party_integrations/opnsense.html