BrowserEngineKit

1. Essentials

   Covers Developing a browser app that uses an alternative browser engine, Designing your browser architecture, Preparing your app to be the default web browser.

2. Browser extensions

   Covers Creating browser extensions in Xcode, Extension life cycle, Extension resources.

3. Web content

   Covers View and input coordination, Text interaction, BEWebAppManifest.

4. Scroll view interaction

   Covers BEScrollView, BEScrollViewScrollUpdate, BEScrollViewDelegate.

5. Drag interaction

   Covers BEDragInteraction, BEDragInteractionDelegate.

6. Context menus

   Covers BEContextMenuConfiguration.

7. Accessibility

   Covers BEAccessibilityTextMarkerSupport, valueChangedNotification, selectionChangedNotification, BEAccessibilityContainerType.

8. Just-in-time code compilation

   Covers Protecting code compiled just in time, Improving control flow integrity with pointer authentication, BE_JIT_WRITE_PROTECT_TAG.

9. Downloads

   Covers Downloading files in a web browser with an alternative browser engine, BEDownloadMonitor.

10. Enumerations

    Covers BEAccessibilityOrientation.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.