Not sure about wifi cameras, I have a mix of Trendnet and Hikivision POE, sitting on a Vlan with no internet access. For the software I use Blue Iris. Where I have a need for cameras I have only a Windows server and I have found this software to be the best for me.

Yeah Lenovo tinies ares great I have a bunch of m910q’s I use for everything

I have a stack of 5th - 7th Gen tinies I can’t seem to get rid of lol