expo-sdk-43

Install

yarn

Build internal distribution (without testflight)

You need to change release-channel at eas.json

"production": {
  "releaseChannel": "RELEASE_CHANNEL_YOU_WANT",
  "cache": {
    "key": "RELEASE_CHANNEL_YOU_WANT"
  },
  "distribution": "internal"
}

And run build

eas build --platform ios

And follow steps that eas provides you to add new devices etc. You will need to scan QR code to add your iOS device to be able to test this distribution