No longer in App Store?

I just was transferring apps to a new iPhone 14 Pro and discovered that the app is not in the (US) App Store any more.

Is there a plan to get it back in the store or should we switch to building it from source?

(For what it's worth, I was able to build the current source with Xcode 14 and transfer my subscriptions over from my old iPhone. I changed the deployment target to iOS 11, switched to automatic signing and picked my team.)