Build React Native CLI app IOS testflight

I need a helping hand in building IOS testflight from your Mac. I do have a Apple developer account though. I need someone good at building IOS testflight from my react native cli project. I've used a template https://github.com/Aashu-Dubey/React-Native-UI-Templates and done some modifications in the UI front. I've already taken care of creating apk file for Android.

I like the first build to be completed today and many other testflight builds in the coming days. Please give your quote only for the first build.