A Summary of the WWDC25 Group Lab

We're using RealityKit to create a science education AR app for iOS, iPadOS, and visionOS. In the WWDC25 session video Bring your SceneKit project to RealityKit https://developer.apple.com/videos/play/wwdc2025/288 at 8:15, it's explained that when using RealityKit, RealityView should be used in all cases, whereas in the past, SceneKit required SCNView, SceneView, or ARSCNView, depending on an app's requirements. Because the initial development of our app on iOS predates iOS 18's RealityView, our app currently uses ARView to render RealityKit AR content on iOS and iPadOS. Is it recommended that we migrate to RealityView, or can we safely continue using our existing ARView implementation? We'd prefer to avoid unnecessary development cost. If migrating from ARView to RealityView is recommended, what specific benefits should we expect from this transition? Thank you.

The WWDC25: Explore large language models on Apple silicon with MLX video talks about using your own data to fine-tune a large language model. But the video doesn't explain what kind of data can be used. The video just shows the command to use and how to point to the data folder. Can I use PDFs, Word documents, Markdown files to train the model? Are there any code examples on GitHub that demonstrate how to do this?

I have a UICollectionView with horizontally scrolling sections. In the cell I have a UIButton. I need to cancel the touches when the user swipes horizontally but it does not work. touchesShouldCancel(in:) is only called when swiping vertically over the UIButton, not horizontally. Is there a way to make it work? Sample code below import UIKit class ConferenceVideoSessionsViewController: UIViewController { let videosController = ConferenceVideoController() var collectionView: UICollectionView! = nil var dataSource: UICollectionViewDiffableDataSource ! = nil var currentSnapshot: NSDiffableDataSourceSnapshot ! = nil static let titleElementKind = title-element-kind override func viewDidLoad() { super.viewDidLoad() navigationItem.title = Conference Videos configureHierarchy() configureDataSource() } } extension ConferenceVideoSessionsViewController { func createLayout() -> UICollectionViewLayout { let sectionProvider = { (sectionIndex: Int, layoutEnvironment: NSCollectionLayoutEnvironment) -> NSCollectionLayo

Hi! I watched the WWDC25 session Bring your SceneKit project to RealityKit which seemed like a great resource for those of us transitioning from the now-deprecated SceneKit framework. The session mentioned that the full sample code for the project would be available to download, but I haven't been able to find it in the Code section of the video page or in the Sample Code Library. Has the sample code been released yet? Having the project code would make it much easier to follow along with the RealityKit changes shown in the video. Thanks again for the great session.

I have been spending countless amounts of time making sure my application abides by the rules laid out by Apple App Guidelines. Most recently I got this rejection from App Review: _**Guideline 3.1.1 - Business - Payments - In-App Purchase ** The app includes an account registration feature for businesses and organizations, which is considered access to external mechanisms for purchases or subscriptions to be used in the app. **Next Steps ** Remove the account registration features for business and organizations._ After asking for the review to clarify what they mean they said: _Regarding guideline 3.1.1, users were still able to create an entirely independent business account, when they create a new account without the invite code. To resolve this issue, it would be appropriate to remove the account registration features for business and organizations._ But the problem is that There are no different account types in our app. ALL users create company accounts - there is no individual vs business distinction. U