```swift

	let sectionWidth: CGFloat = 324

  let sectionSpacing: CGFloat = 30

  private let itemWidth: CGFloat = 300

  let itemSpacing: CGFloat = 25


func createCompositionalLayout() -> NSCollectionViewLayout {

    let horizontalItemOffset = NSCollectionLayoutSpacing.fixed(12)

    let itemWidthDimension = NSCollectionLayoutDimension.absolute(itemWidth)

    let sectionWidthDimension = NSCollectionLayoutDimension.absolute(sectionWidth)


    let itemEdgeSpacing = NSCollectionLayoutEdgeSpacing(

      leading: horizontalItemOffset,

      top: .fixed(75),

      trailing: horizontalItemOffset,

      bottom: .none)


    // Item

			let itemSize = NSCollectionLayoutSize(

      widthDimension: itemWidthDimension,

      heightDimension: .estimated(130))


    let item = NSCollectionLayoutItem(layoutSize: itemSize)

    item.edgeSpacing = itemEdgeSpacing


    // Header

    let layoutSectionHeaderItemSize = NSCollectionLayoutSize(

      widthDimension: sectionWidthDimension,

      heightDimension: .absolute(50))


    let layoutSectionHeaderItem = NSCollectionLayoutBoundarySupplementaryItem(

      layoutSize: layoutSectionHeaderItemSize,

      elementKind: .header,

      alignment: .top)


    // Group

    let groupSize = NSCollectionLayoutSize(

      widthDimension: sectionWidthDimension,

      heightDimension: .estimated(130))


    let group = NSCollectionLayoutGroup.vertical(

      layoutSize: groupSize,

      subitems: [item])


    // Background

    let sectionBackgroundView = NSCollectionLayoutDecorationItem.background(elementKind: .background)


    // Section

    let section = NSCollectionLayoutSection(group: group)

    section.orthogonalScrollingBehavior = .continuous

    section.boundarySupplementaryItems = [layoutSectionHeaderItem]

    section.interGroupSpacing = -50

    section.decorationItems = [sectionBackgroundView]


    // Prepare

    let configuration = NSCollectionViewCompositionalLayoutConfiguration()

    configuration.scrollDirection = .horizontal

    configuration.interSectionSpacing = sectionSpacing


    let layout = CustomLayout(

      section: section,

      configuration: configuration)


    layout.register(

      SectionBackgroundView.self,

      forDecorationViewOfKind: .background)


    return layout

  }

```