iOS - SDK Verification failed. Would you like to attempt the Launch On anyway?

Has anyone managed to get UE5 from source to work with iOS SDK and if so, what are the hoops to jump through as whilst we have UE5 built from source, as is, iOS doesn’t appear to be a supported platform. I assume somehow the iOS SDK needs to be compiled as part of building the UE5 engine? Can this be done on PC or is a Mac required?