Exposing service as an environment object

AppWithService.swift

import SwiftUI
import SwiftData

@main
struct ExampleApp: App {
  private let exampleService: ExampleService
  let sharedModelContainer: ModelContainer
  
  init() {
    let schema = Schema([
      SomeModel.self,
      SomeOtherModel.self
    ])
    let modelConfiguration = ModelConfiguration(schema: schema, isStoredInMemoryOnly: false)
    do {
      sharedModelContainer = try ModelContainer(for: schema, configurations: [modelConfiguration])
      exampleService = ExampleService(modelContext: sharedModelContainer.mainContext)
    } catch {
      fatalError("Could not create ModelContainer: \(error)")
    }
  }
  
  var body: some Scene {
    WindowGroup {
      ContentView()
        .environmentObject(exampleService)
    }
    .modelContainer(sharedModelContainer)
  }
}