Sometimes you just have to start over. lol.
It looks like I actually got it working. Thanks for your replies. Nice to see someone out there helping out!

Yeah it's all wonky. I'm resetting it and starting over. It said root volume was almost full.

I have removed everything and reinstalled from https://info.hdhomerun.com/info/dvr:nas:netgear
Still does not work. What am I missing?
Player app loads to "Devices" screen. Lists Flex 4k and HDHomeRun RECORD with a xx% of 0.00TB used.
"Recorded" screen states: Your HDHomeRun DVR is ready to record ...

Rebooting NAS now.

Ok, this worked for a while then kind of pooped out. Tuner would not find the DVR. I reinstalled the app with SSH, but now the Tuner and app see the DVR but NOTHING records or is in the record list to play back. There's a disconnect somewhere in the path i think but I cannot seem to figure it out ...