Foundation

1. Fundamentals

   Covers Numbers, Data, and Basic Values, Strings and Text, Collections, Dates and Times.

2. App Support

   Covers Task Management, Resources, Notifications, App Extension Support.

3. Files and Data Persistence

   Covers File System, Archives and Serialization, Settings, Spotlight.

4. Networking

   Covers URL Loading System, Bonjour.

5. Low-Level Utilities

   Covers XPC, Object Runtime, Processes and Threads, Streams, Sockets, and Ports.

6. Reference

   Covers Foundation Enumerations, Foundation Data Types.

7. Classes

   Covers ProgressManager, ProgressReporter.

8. Protocols

   Covers NSPredicateValidating.

9. Structures

   Covers Subprogress.

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

• File Provider App Services
• File Provider UI App Services
• FinanceKit App Services
• FinanceKitUI App Services
• Finder Sync System
• Force Feedback System
• Foundation Models App Frameworks
• Foveated Streaming Graphics and Games
• FSKit System
• Game Controller Graphics and Games
• GameKit Graphics and Games
• GameplayKit Graphics and Games