I followed the readme from github on installing the generic camera app fro pstuart for integrating reolink cameras with NVR to smartthings. Unfortunately the app doesn’t show up in Smartthings app under safety and security.
Via the Classic app, you’ll find your published SmartApps under My Apps (at the very end).
Found out thanks
Do I need to add the steam of each camera or the reolink NVR?
Sorry but I’m not sure. I was just chiming in to help point you in the right direction for finding the app. You should check the main discussion to see if that question has been answered, or you can ask it there if not.