As noted by 9to5Mac, Apple is email invitations to developers for new online sessions focused on bringing iPad apps to the Mac. The “Bring Your iPad App to Mac” online workshops will held throughout the rest of February and the first half of March.
In the email Apple says: Mac Catalyst lets you bring your existing iPad app to Mac. Learn how to optimize your app and use Mac Catalyst to build a native Mac app that shares the same project and source code. Explore the latest features in iPadOS 14 that can save you time during this process and discover how to incorporate platform-specific features and controls that look and behave like those in AppKit, so you can create an app that feels at home on Mac.