Progress · 0/6 phases
🗓️ 🗓️ 60-Day Plan — All Days Reference
8 min read · Notion
Use this as your daily reference. Duplicate one row into your tracker for each day you study. Each day has a specific milestone — not “learn X” but “ship Y.”
📦 Phase 1 — KMP Foundations (Days 1–12)
| Day | Topic | Daily Milestone |
|---|---|---|
| 1 | KMP Project Setup | KMP Wizard project. Android + iOS + Desktop all compile. Platform() shows different name on each. |
| 2 | Gradle KMP Configuration | libs.versions.toml fully written. shared/build.gradle.kts compiles all 4 targets cleanly. |
| 3 | Source Sets & Hierarchy | appleMain intermediate source set created and compiles. Source set hierarchy diagram drawn. |
| 4 | Source Set Dependencies | All deps placed per source set. No Android import in commonMain. Verified with compiler. |
| 5 | expect/actual Basics | Platform() + randomUUID() + currentTimeMillis() in commonMain. actual in all 3 platforms. |
| 6 | expect/actual: Settings & Logger | AppSettings + AppLogger + ConnectivityObserver working on Android + iOS + Desktop. |
| 7 | expect/actual: Crypto & Security | SecureStorage interface. Android EncryptedSharedPreferences + iOS Keychain both work. |
| 8 | Convention Plugins | build-logic module. KmpLibraryConventionPlugin applies to shared. No duplicated Gradle config. |
| 9 | Static Analysis | detekt + ktlint running. BinaryCompatibilityValidator added. API dump committed. |
| 10 | Phase 1 Project: KMP Skeleton | 3 platforms show Platform().name from same shared class. ./gradlew **:shared:**allTests green. |
| 11 | Domain Layer | User + Post models. UserRepository interface. 5 use cases. Zero framework imports in domain. |
| 12 | Clean Architecture in KMP | Boundaries verified. Mappers written. DTO ≠ domain model ≠ UI model all separate. |
📁 Phase 2 — Shared Business Logic (Days 13–28)
| Day | Topic | Daily Milestone |
|---|---|---|
| 13 | Ktor Client Setup | createHttpClient() with ContentNegotiation + Auth + Logging + Retry. Engine injected per platform. |
| 14 | Ktor DTOs & Error Handling | UserDto @Serializable. safeApiCall wrapper. NetworkResult sealed class. |
| 15 | Ktor Remote Data Sources | UserRemoteDataSource: getUsers, getUserById, createUser, uploadAvatar all working. |
| 16 | SQLDelight Schema | User.sq + Post.sq with all queries. ./gradlew generateSqlDelightInterface runs clean. |
| 17 | SQLDelight Driver expect/actual | createDatabaseDriver() actual for Android + iOS + Desktop. DB opens on all platforms. |
| 18 | SQLDelight Flow Integration | getAllUsers() returns Flow<List<User>>. Emits on every table change. mapToList(IO) used. |
| 19 | Repository Implementation | UserRepositoryImpl: offline-first. Emits local immediately, refreshes from network async. |
| 20 | Repository: Create & Update | createUser + updateUser + deleteUser all working. SQLDelight transactions used for bulk ops. |
| 21 | Koin: DI Module Setup | networkModule + databaseModule + repositoryModule. sharedModules() function exported. |
| 22 | Koin: Android & iOS Modules | androidModule with Context. iosModule. startKoin called correctly on both platforms. |
| 23 | Koin: ViewModel Module | viewModelModule with viewModelOf(). koinViewModel() in Compose. koinScreenModel() in Voyager. |
| 24 | Shared ViewModel | UserListViewModel: StateFlow<UserListState> + Channel<UserListEffect>. init observes + refreshes. |
| 25 | ViewModel: State Machine | Loading → Success → Error states. Refresh updates isRefreshing not isLoading. Effects fire once. |
| 26 | ViewModel: Create & Detail | CreateUserViewModel with form validation. UserDetailViewModel with posts sub-list. |
| 27 | Offline-First: TTL & Cache Invalidation | Cache TTL in SQLDelight (updatedAt column). Stale check in repository before network call. |
| 28 | Phase 2 Project: Full Data Layer | FakeRepository tests pass with Turbine on JVM + iOS. Offline-first flow verified. allTests green. |
🎨 Phase 3 — Compose Multiplatform UI (Days 29–42)
| Day | Topic | Daily Milestone |
|---|---|---|
| 29 | CMP Entry Points | App() in commonMain. MainActivity + MainViewController + Desktop main(). All load same Composable. |
| 30 | ContentView.swift + Koin Init | ContentView wraps ComposeUIViewController. KoinInitializer.init() in SwiftUI @main App. |
| 31 | Material 3 Theme | LightColorScheme + DarkColorScheme + AppTypography + AppShapes. AppTheme() composable. |
| 32 | Design Tokens | Dimensions, AppIcons, AppColors objects. All components use tokens, no hardcoded values. |
| 33 | Voyager Tab Navigation | TabNavigator with Home + Search + Profile tabs. BottomNavigationBar. TabNavigationItem. |
| 34 | Voyager Stack Navigation | Navigator + SlideTransition. UserListScreen pushes UserDetailScreen. Back stack works. |
| 35 | UserListScreen | Loading/Empty/Error/Content states. PullRefresh. Voyager LocalNavigator for navigation. |
| 36 | UserDetailScreen | User profile header. Posts LazyColumn. Follow button with loading state. |
| 37 | Shared Components | UserCard, PostCard, AppButton (3 variants), AppTextField (with error), ConfirmDialog. |
| 38 | Compose Resources | strings.xml (EN + HI). painterResource for images. fontResource. stringResource used everywhere. |
| 39 | CreateUserScreen | Form with validation. isSubmitting state disables button. Error messages below fields. |
| 40 | SettingsScreen | Theme toggle. Account info. Logout with ConfirmDialog. All state in SettingsViewModel. |
| 41 | Adaptive Layouts | WindowSizeClass used. Phone: single panel. Tablet/Desktop: 2-panel master-detail. |
| 42 | Phase 3 Project: Full CMP App | Android + iOS + Desktop: all 5 screens working. Navigation correct. Adaptive layout on desktop. |
📱 Phase 4 — Platform APIs & iOS Interop (Days 43–54)
| Day | Topic | Daily Milestone |
|---|---|---|
| 43 | SKIE Installation & Config | skie block in shared/build.gradle.kts. Build succeeds. Check Swift output has no manual wrappers. |
| 44 | SKIE: StateFlow → AsyncSequence | AuthState sealed class. Swift for-await loop over viewModel.authState. Exhaustive switch works. |
| 45 | SKIE: Suspend → async/throws | login() suspend fun called as async throws in Swift. Error mapped to Swift Error type. |
| 46 | SecureStorage: Android | AndroidSecureStorage with EncryptedSharedPreferences. saveString + getString + clear tested. |
| 47 | SecureStorage: iOS Keychain | IosSecureStorage with SecItem APIs. Save + retrieve token. Survives app restart. |
| 48 | Image Picker: Android | ActivityResultContracts.PickVisualMedia. ByteArray returned. Upload via Ktor multipart. |
| 49 | Image Picker: iOS | UIImagePickerController delegate. ByteArray from UIImageJPEGRepresentation. Upload tested. |
| 50 | Push Notifications | NotificationHandler in commonMain parses payload. AndroidFMS + iOS APNs delegate both route to it. |
| 51 | GPS & Location: Android | AndroidLocationService with FusedLocationProvider. getCurrentLocation() tested. |
| 52 | GPS & Location: iOS | IosLocationService with CLLocationManager. requestPermission() returns Bool. Flow works. |
| 53 | Biometric Auth | BiometricManager expect/actual. Android BiometricPrompt. iOS LAContext evaluatePolicy. |
| 54 | Phase 4 Project: Native Features | Login with biometrics. Photo upload. Push notification routing. GPS nearby users. SKIE verified. |
🚀 Phase 5 — Production & CI/CD (Days 55—60)
| Day | Topic | Daily Milestone |
|---|---|---|
| 55 | Testing: commonTest + Turbine | UserRepositoryTest with TestSqlDriver + FakeRemote. runTest used. JVM + iOS sim both pass. |
| 56 | Testing: ViewModel + Paparazzi | UserListViewModelTest state machine tested. Paparazzi: UserCard in light/dark/landscape. |
| 57 | GitHub Actions: CI Pipeline | PR workflow: JVM tests + screenshot tests + lint in < 5 min. iOS tests on main branch only. |
| 58 | GitHub Actions: Build Pipeline | build-android job: release AAB signed + artifact. build-ios job: XCFramework + archive. |
| 59 | Fastlane: Deploy | fastlane android deploy_internal uploads AAB. fastlane ios deploy_testflight uploads IPA. |
| 60 | Capstone: Production KMP App | git tag v1.0.0 → Play Store internal + TestFlight automatically. All checklists green. |
📊 Daily habit
- Open this table. Find today’s row.
- Study the topic. Write the code.
- Hit the daily milestone — not “read about it” but “ship it.”
- Log in tracker: tick Runs on Android / iOS / Desktop when each target works.
- Tick Code in commonMain if you wrote platform-agnostic shared code today.
- Write one sentence in Key concept learned — your own words, not copied.
💡 The rule: if the code only runs on one platform, it doesn’t count as KMP. Every day’s milestone must be verified on at least 2 targets.