How to eject to expokit?

I have a CRNA project , I want it to eject to expokit . How to do it? .Also will I still be able to run my app on device through QR scan ?

should have all the instructions you need.

If you eject and start adding your own native code, your workflow will be that you build apps with Xcode and Android Studio and distribute them through TestFlight, etc. or just plugging your device into your computer.