┌─────────────────┬──────┬─────────────┬───────────────────────────────────────────────────────────┐

│ Module │ KMP? │ JVM target? │ Notes │

├─────────────────┼──────┼─────────────┼───────────────────────────────────────────────────────────┤

│ T383838core:proto │ ✅ │ ✅ │ Protobuf definitions │

│ T383838core:common │ ✅ │ ✅ │ Utilities, T383838jvmAndroidMain source set │

│ T383838core:model │ ✅ │ ✅ │ Domain models, T383838jvmAndroidMain source set │

│ T383838core:repository │ ✅ │ ✅ │ Domain interfaces │

│ T383838core:di │ ✅ │ ✅ │ Dispatchers, qualifiers │

│ T383838core:navigation │ ✅ │ ✅ │ Shared Navigation 3 routes │

│ T383838core:resources │ ✅ │ ✅ │ Compose Multiplatform resources │

│ T383838core:datastore │ ✅ │ ✅ │ Multiplatform DataStore │

│ T383838core:database │ ✅ │ ✅ │ Room KMP │

│ T383838core:domain │ ✅ │ ✅ │ UseCases │

│ T383838core:prefs │ ✅ │ ✅ │ Preferences layer │

│ T383838core:network │ ✅ │ ✅ │ Ktor, T383838StreamFrameCodec, T383838TcpTransport, T383838SerialTransport, T383838B… │

│ T383838core:data │ ✅ │ ✅ │ Data orchestration │

│ T383838core:ble │ ✅ │ ✅ │ Kable multiplatform BLE abstractions in commonMain │

│ T383838core:nfc │ ✅ │ ✅ │ NFC contract in commonMain; hardware in androidMain │

│ T383838core:service │ ✅ │ ✅ │ Service layer; Android bindings in androidMain │

│ T383838core:ui │ ✅ │ ✅ │ Shared Compose UI, pure KMP QR generator, T383838jvmAndroidMain… │

│ T383838core:testing │ ✅ │ ✅ │ Shared test doubles, fakes, and utilities for T383838commonTest │

│ T383838core:takserver │ ✅ │ ✅ │ TAK/ATAK integration, Fountain codec │

│ T383838core:api │ ❌ │ — │ Android-only (AIDL). Intentional. │

│ T383838core:barcode │ ❌ │ — │ Android-only (CameraX). Flavor split minimised to decode… │

└─────────────────┴──────┴─────────────┴───────────────────────────────────────────────────────────┘

┌────────────────────────┬───────────────────┬─────────────────────────────────────────────────────┐

│ Module │ UI in commonMain? │ Desktop wired? │

├────────────────────────┼───────────────────┼─────────────────────────────────────────────────────┤

│ T383838feature:settings │ ✅ │ ✅ ~35 real screens; fully shared T383838settingsGraph an… │

│ T383838feature:node │ ✅ │ ✅ Adaptive list-detail; fully shared T383838nodesGraph, T383838… │

│ T383838feature:messaging │ ✅ │ ✅ Adaptive contacts + messages; fully shared T383838cont… │

│ T383838feature:connections │ ✅ │ ✅ Shared T383838ConnectionsScreen with dynamic transport… │

│ T383838feature:intro │ — │ — │

│ T383838feature:map │ — │ Placeholder; shared T383838NodeMapViewModel and T383838BaseMapVi… │

│ T383838feature:firmware │ ✅ │ ✅ Fully KMP: Unified OTA, native Secure DFU, USB/… │

│ T383838feature:wifi-provision │ ✅ │ ✅ KMP WiFi provisioning via BLE (Nymea protocol);… │

│ T383838feature:widget │ ❌ │ — │

└────────────────────────┴───────────────────┴─────────────────────────────────────────────────────┘

┌────────────────────────────┬───────┬─────────────────────────────────────────────────────────────┐

│ Area │ Score │ Notes │

├────────────────────────────┼───────┼─────────────────────────────────────────────────────────────┤

│ Shared business/data logic │ 9/10 │ All core layers shared; RadioTransport interface unified │

│ Shared feature/UI logic │ 9/10 │ 9 KMP feature modules; firmware fully migrated; wifi-provi… │

│ Android decoupling │ 9/10 │ No known T383838java.* calls in T383838commonMain; app module extraction… │

│ Multi-target readiness │ 9/10 │ Full JVM; release-ready desktop; iOS simulator builds comp… │

│ CI confidence │ 9/10 │ 26 modules validated (including feature:wifi-provision); n… │

│ DI portability │ 8/10 │ Koin annotations in commonMain; supportedDeviceTypes injec… │

│ Test maturity │ 9/10 │ Mokkery, Turbine, and Kotest integrated; property-based te… │

└────────────────────────────┴───────┴─────────────────────────────────────────────────────────────┘

┌──────────────────────────────┬───────┐

│ Lens │ % │

├──────────────────────────────┼───────┤

│ Android-first structural KMP │ ~100% │

│ Shared business logic │ ~98% │

│ Shared feature/UI │ ~92% │

│ True multi-target readiness │ ~85% │

│ "Add iOS without surprises" │ ~100% │

└──────────────────────────────┴───────┘

┌────────────────────────────────────────────────────────────────────────────┬─────────┬───────────┐

│ Decision │ Status │ Details │

├────────────────────────────────────────────────────────────────────────────┼─────────┼───────────┤

│ Navigation 3 parity model (shared T383838TopLevelDestination + platform adapters) │ ✅ Done │ See de: serializer registration validation and platform exception tracking.

All major ViewModels have now been extracted to T383838commonMain and no longer rely on Android-specific subclasses. Platform-specific dependencies (like T383838android.net.Uri or Location permissions) have been successfully isolated behind injected T383838core:repository interfaces (e.g., T383838FileService, T383838LocationService).

The extraction of all feature-specific navigation graphs, background services, and widgets out of T383838:app is complete. The T383838:app module now only serves as the root DI assembler and NavHost container.

Extracted to shared T383838commonMain (no longer app-only):

• T383838SettingsViewModel → T383838feature:settings/commonMain

• T383838RadioConfigViewModel → T383838feature:settings/commonMain

• T383838DebugViewModel → T383838feature:settings/commonMain

• T383838MetricsViewModel → T383838feature:node/commonMain

• T383838UIViewModel → T383838core:ui/commonMain

• T383838ChannelViewModel → T383838feature:settings/commonMain

• T383838NodeMapViewModel → T383838feature:map/commonMain (Shared logic for node-specific maps)

• T383838BaseMapViewModel → T383838feature:map/commonMain (Core contract for all maps)

Extracted to core KMP modules:

• Android Services, WorkManager Workers, and BroadcastReceivers → T383838core:service/androidMain

• USB/Serial radio connections → T383838core:network/androidMain

• TCP radio connections, BLE radio connections (T383838BleRadioInterface), and mDNS/NSD Service Discovery → T383838core:network/commonMain (with Android T383838NsdManager and Desktop T383838JmDNS implementations)

Remaining to be extracted from T383838:app or unified in T383838commonMain:

• T383838MapViewModel (Unify Google/F-Droid flavors into a single T383838commonMain class consuming a T383838MapConfigProvider interface)

┌──────────────────────────────────┬────────────────┬──────────────────────────────────────────────┐

│ Dependency │ Version │ Why │

├──────────────────────────────────┼────────────────┼──────────────────────────────────────────────┤

│ Compose Multiplatform │ T3838381.11.0-beta01 │ Required for JetBrains Adaptive T3838381.3.0-alpha… │

│ Compose Multiplatform Material 3 │ T3838381.11.0-alpha05 │ Material 3 components including T383838NavigationS… │

│ Koin │ T3838384.2.0 │ Nav3 + K2 compiler plugin support │

│ JetBrains Lifecycle │ T3838382.11.0-alpha02 │ Multiplatform ViewModel/lifecycle; includes… │

│ JetBrains Navigation 3 │ T3838381.1.0-beta01 │ Multiplatform navigation with Scene archite… │

│ JetBrains Navigation Event │ T3838381.1.0-alpha01 │ KMP T383838NavigationBackHandler for predictive ba… │

│ JetBrains Material 3 Adaptive │ T3838381.3.0-alpha06 │ T383838ListDetailPaneScaffold, T383838ThreePaneScaffold, … │

│ Kable BLE │ T3838380.42.0 │ Provides fully multiplatform BLE support │

└──────────────────────────────────┴────────────────┴──────────────────────────────────────────────┘