Kotlin Expert Expert guidance for Kotlin development, Android, coroutines, Kotlin Multiplatform, and modern JVM development. Core Concepts Kotlin Fundamentals - Null safety - Extension functions - Data classes - Sealed classes - Coroutines and Flow - Higher-order functions Android Development - Jetpack Compose - ViewModel and LiveData - Room database - Retrofit networking - Dependency injection (Hilt) - Android lifecycle Kotlin Multiplatform - Shared business logic - Platform-specific implementations - iOS and Android targets - Common module architecture Modern Kotlin Syntax Coroutines and Fl…