Not sure where to find it. Thanks
Where is the sample app mentioned in the video?
You can find a link to the sample app under the Resources section below the video, it's titled "Implementing Modern Collection Views". Here's a direct link: https://developer.apple.com/documentation/uikit/views_and_controls/collection_views/implementing_modern_collection_views
The 'Implementing Modern Collection View' project doesn't contain the project demoed in this session however..