I'm a freelancer and I was contracted to make an iOS app for a client. I've already completed development and I'm currently testing it. However, I'm not sure how to get the app to my client. It's an internal app that will only be used by the client's employees so he doesn't want it on the app store. He told me he has an Apple business account and sent me this link https://developer.apple.com/business/distribute/ and it shows that there are enterprise options for app distribution.
How can I take the project files on my machine and get them to my client so that he can add the app to his employee's devices? Ideally as streamlined and pain free as possible for him (preferably I could do all the work so he won't have to worry about it).
