Kotlin Multiplatform (KMP) Fundamentals

Kotlin Multiplatform enables sharing code across Android, iOS, Desktop, Web (WASM), and Server.

Project Structure

Multi-Module Architecture (Feature-based + api/impl)

your-project-admin/
├── build.gradle.kts              # Root build config
├── settings.gradle.kts           # Module includes
├── gradle/libs.versions.toml     # Version catalog
│
├── core/
│   ├── common/                   # Utilities, Result types, extensions
│   │   └── src/commonMain/kotlin/
│   ├── data/                     # Data abstractions, DataStore
│   │   ├── src/commonMain/kotlin/