Can you tell about the key features and capabilities of Kotlin Multiplatform for cross-platform development?

Kotlin Multiplatform is a technology that allows you to write shared code that can be used on different platforms (Android, iOS, JVM, JavaScript, Native). Main features and capabilities:

• Shared code and platform-specific code: Enables you to isolate business logic, data models, and other parts of the application into a common module, while implementing platform-specific details separately.
• Support for multiple platforms: Android, iOS, Web (via JS), Desktop, and others.
• Use of Kotlin: A single language for all platforms, simplifying development and maintenance.
• Integration with existing projects: Kotlin Multiplatform can be gradually introduced into existing applications.
• expect/actual mechanism: Allows declaring interfaces and APIs in common code (expect) and implementing them for each platform separately (actual).

Example of using expect/actual:

// In the common module
expect fun getPlatformName(): String

// In the Android module
actual fun getPlatformName(): String = "Android"

// In the iOS module
actual fun getPlatformName(): String = "iOS"

Thus, Kotlin Multiplatform helps reduce code duplication and accelerates the development of cross-platform applications, while maintaining a native experience for each platform.