According to Wikipedia - Copy on Write "is a resource-management technique used in computer programming to efficiently implement a "duplicate" or "copy" operation on modifiable resources."
As confusing as it may seem,
Before iOS 13, if you wanted to have a vertical collection view with horizontally scrolling sections it required embedding a scroll view inside the collection view cell, passing the model around, handling touch
With iOS 13 Apple introduced a new and very powerful way of creating layouts for UICollectionView - UICollectionViewCompositionalLayout.
The compositional layout uses three types of "building blocks":
- item - describes properties of