Kill Combine: Mastering AsyncSequence for Production Apps

- The AsyncSequence advantage: Why it's faster, cleaner, and better integrated than Combine
- Migration patterns that work: 
     Publisher → AsyncSequence,
     Subject → AsyncStream,
     operators → async algorithms
- Production war stories: Real bugs, performance wins, and lessons from migrating 100K+ lines
- Multi-consumer patterns: The techniques Apple doesn't document
- Testing strategies: How to test async sequences properly
- Swift 6.3 preview: What's coming next for async streams

Key Takeaways:

1. Complete migration strategy from Combine to AsyncSequence
2. Production-ready AsyncStream patterns
3. Performance optimization techniques
4. Real before/after code examples
5. Testing and debugging strategies