And it is that Apple continues working to implement the development of cross applications between iPhone, iPad and Mac devices. This project, which is expected to begin to bear fruit during the next year 2021, would be present at the keynote focused on the developers of the month of June.
Mark Gurman affirms this in the Bloomberg medium, in which he explains that the Cupertino guys could release some more information about this process of unifying the development of apps for the different OS of the company. This implies several things before and one of them is evidently that Apple ditch Intel processors in Macs and move to ARMs that's why we say it's something that will take a while.
Marzipan, which is how the project is known from within Apple, would not be something that unifies the OS of the Mac and the iPhone, iPad as many would like. What this project will allow is that developers do not have to create apps for the Mac App Store and the iOS App Store, so that it is easily understood it would be create the same code for all Apple apps.
All this is still quite far today and it is expected that before taking this step the company will carry out many tests including the option of using both app development methods for a time until stabilizing in just one. What seems clear is that we will have more news about it in this WWDC, that is why it was also commented that we would have details of the Mac Pro in this WWDC and that is this "unification" continues to advance.