Is it possible to create a mobile app in Unity to be used with a cardboard instead of a GearVR?

I have put together an app that works well in the Oculus Go using the Oculus package for unity. I would also like the app to work using just a cardboard device. I understand this is possible using the developer settings on my mobile device, but I would like the app to open without needing to be connected to the Gear VR by default for all users. I have tried adding cardboard to my VR device options in Unity and even tried removing the Oculus supported device and my phone (Galaxy S8) still requires connection to a Gear VR. I got my app to work how I wanted using the GoogleVR package but I would like my apk generated from Unity to work for both Oculus Go and Mobile. Is it possible to run my app without a Gear VR Headset?