A real 3D globe, rendered natively in Metal.

In Xcode: File → Add Package Dependencies…, paste the URL, then add the ImmersiveMap library to your app target.

import SwiftUI
import ImmersiveMap

struct ContentView: View {
    var body: some View {
        ImmersiveMapView()
            .tileURLTemplate(
                "https://immersivemap.dev/tiles/{z}/{x}/{y}.mvt",
                headers: ["Authorization": "Bearer im_…"]
            )
            .ignoresSafeArea()
    }
}

It renders on iOS and macOS from the same SwiftUI code. Take a free key from your account and drop it into the header. Read it from the environment rather than typing it in, and it stays out of your repository.