Wiki & User group
https://groups.io/g/nanovna-users/
Please note that NanoVNA V2 Plus and V2 Plus4, are not upgraded versions of NanoVNA and there is a dispute that these devices violate the GPL license. Since NanoVNA V2 Plus and V2 Plus4 use the same interface as NanoVNA, the usual wiki and group discussion experience applies to these products as well.