A blog about Kotlin Multiplatform and mobile development.https://kmpbits.com/https://kmpbits.com/posts/composure-kmp-forms/https://kmpbits.com/posts/composure-kmp-forms/The spec says 120 Nm and you already knew that. Knowing the number was never the hard part. My validation rules were already shared. The sixty lines of state around them were not.Mon, 24 Aug 2026 00:00:00 GMThttps://kmpbits.com/posts/skeletal-compose-multiplatform/https://kmpbits.com/posts/skeletal-compose-multiplatform/Five ligths go out and every car reacts to the same signal at once. My shimmer effect wasn't doing that. Every skeleton on screen was running its own private clock.Mon, 17 Aug 2026 00:00:00 GMThttps://kmpbits.com/posts/deterministic-kmp-feature-module-script/https://kmpbits.com/posts/deterministic-kmp-feature-module-script/AI generation adapts to anything you ask. A bash script adapts to nothing. After a few months of scaffolding KMP feature modules both ways, I know which one I trust.Thu, 06 Aug 2026 00:00:00 GMThttps://kmpbits.com/posts/feature-flags-kmp/https://kmpbits.com/posts/feature-flags-kmp/A driver changes the engine map from the wheel, mid-race, no pit stop required. Feature flags do the same for your app: change behaviour without shipping a build. Here's how I structure flags and remote config once, in commonMain, for both platforms.Mon, 13 Jul 2026 00:00:00 GMThttps://kmpbits.com/posts/expect-actual-advanced-kmp/https://kmpbits.com/posts/expect-actual-advanced-kmp/expect/actual is easy until you leave the trivial expect fun behind. Here's what bites with expect classes, constructors, actual typealiases, and the compiler rules nobody warns you about.Mon, 06 Jul 2026 00:00:00 GMThttps://kmpbits.com/posts/coroutine-exception-handling-kmp/https://kmpbits.com/posts/coroutine-exception-handling-kmp/An uncaught coroutine exception crashes your KMP app on both platforms, and the platform safety nets don't extend to iOS. Here's how I build crash boundaries in commonMain.Mon, 29 Jun 2026 00:00:00 GMThttps://kmpbits.com/posts/coil3-compose-multiplatform/https://kmpbits.com/posts/coil3-compose-multiplatform/Tyre warmers keep rubber at temperature so the car has grip the instant it leaves the box. Coil 3's memory and disk cache do the same for images — and the same code now runs on Android and iOS from commonMain.Mon, 15 Jun 2026 00:00:00 GMThttps://kmpbits.com/posts/barcode-scanning-compose-multiplatform/https://kmpbits.com/posts/barcode-scanning-compose-multiplatform/expect/actual isn't just for business logic. Here's how to build a shared barcode scanner Composable that reads through any platform's lens.Mon, 08 Jun 2026 00:00:00 GMThttps://kmpbits.com/posts/kmp-maven-central/https://kmpbits.com/posts/kmp-maven-central/Before a race car can compete, it needs to be homologated. Before your KMP library can be used by anyone, it needs Maven Central.Mon, 01 Jun 2026 00:00:00 GMThttps://kmpbits.com/posts/ktor-client-advanced/https://kmpbits.com/posts/ktor-client-advanced/The pit crew doesn't wait to be asked. They intercept the car, do their work, and the driver rejoins the race. Ktor plugins work the same way: auth, logging, and retry all happen before your business logic sees a thing.Mon, 25 May 2026 00:00:00 GMThttps://kmpbits.com/posts/drafts/kmp-github-actions/https://kmpbits.com/posts/drafts/kmp-github-actions/In endurance racing every car carries a timing transponder: the circuit knows exactly where you are, every lap, every sector. This is how to put one on your KMP project.Thu, 21 May 2026 00:00:00 GMThttps://kmpbits.com/posts/kmp-splash-plugin/https://kmpbits.com/posts/kmp-splash-plugin/The pit crew was always there. I just had to build it: a Gradle plugin that automates iOS and Android splash screen setup from a single config block.Mon, 18 May 2026 00:00:00 GMThttps://kmpbits.com/posts/drop-the-clutch/https://kmpbits.com/posts/drop-the-clutch/Metro drops the clutch on runtime DI errors. Three patterns in a real KMP app: binding contributions, platform graphs, and child scopes.Mon, 11 May 2026 00:00:00 GMThttps://kmpbits.com/posts/swift-export-kmp/https://kmpbits.com/posts/swift-export-kmp/Objective-C headers turned your Kotlin enums into class wrappers and your function signatures into noise. Swift Export sends the same data over a cleaner channel.Mon, 04 May 2026 00:00:00 GMThttps://kmpbits.com/posts/kmp-modularization-intro/https://kmpbits.com/posts/kmp-modularization-intro/Why organising your garage by components is slowing down your pit stops.Thu, 23 Apr 2026 00:00:00 GMThttps://kmpbits.com/posts/gemini-custom-commands-android-studio/https://kmpbits.com/posts/gemini-custom-commands-android-studio/A pit wall crew knows exactly what to do without being told from scratch. Custom Gemini commands work the same way.Thu, 23 Apr 2026 00:00:00 GMThttps://kmpbits.com/posts/compose-ui-test-cmp/https://kmpbits.com/posts/compose-ui-test-cmp/Before the car hits the grid, telemetry confirms every sector. Before your UI ships, runComposeUiTest confirms every composable.Mon, 20 Apr 2026 00:00:00 GMThttps://kmpbits.com/posts/nav3-shared-elements/https://kmpbits.com/posts/nav3-shared-elements/Navigation 3 supports shared element transitions. It always did. LocalNavAnimatedContentScope was the piece the docs never mentioned.Sun, 12 Apr 2026 00:00:00 GMThttps://kmpbits.com/posts/do-you-really-need-a-pit-wall/https://kmpbits.com/posts/do-you-really-need-a-pit-wall/The intermediary between your app and the database never disappeared. It just stopped being your problem.Sun, 05 Apr 2026 00:00:00 GMThttps://kmpbits.com/posts/detekt-custom-rules-kmp/https://kmpbits.com/posts/detekt-custom-rules-kmp/Track limits don't stop you from going wide. They penalise you for it. Custom Detekt rules work the same way.Tue, 31 Mar 2026 00:00:00 GMThttps://kmpbits.com/posts/stateflow-kmp/https://kmpbits.com/posts/stateflow-kmp/StateFlow is your lap timer — always showing the latest lap. SharedFlow is the race radio — you only hear what's broadcasted while you're tuned in.Sat, 21 Mar 2026 00:00:00 GMThttps://kmpbits.com/posts/sideeffects-under-the-hood/https://kmpbits.com/posts/sideeffects-under-the-hood/Same engine, different cockpit: how Compose and SwiftUI handle side effects when sharing a Kotlin Multiplatform ViewModel.Fri, 13 Mar 2026 00:00:00 GMThttps://kmpbits.com/posts/shared-element-transition/https://kmpbits.com/posts/shared-element-transition/Building fluid, reliable shared element transitions in real-world Compose appsMon, 26 Jan 2026 00:00:00 GMThttps://kmpbits.com/posts/christmas-checklist-kmp/https://kmpbits.com/posts/christmas-checklist-kmp/What Is Really Worth SharingSat, 27 Dec 2025 00:00:00 GMThttps://kmpbits.com/posts/robolectric-compose/https://kmpbits.com/posts/robolectric-compose/How Robolectric Made Compose UI Tests Fast and CI FriendlyMon, 08 Dec 2025 00:00:00 GMThttps://kmpbits.com/posts/koin-inject-kmp/https://kmpbits.com/posts/koin-inject-kmp/Tired of Koin blowing up on iOS because of reified generics? Here’s the definitive fix. Clean, type-safe, Swift-friendly. No crashes, no leaks, no nonsense.Fri, 21 Nov 2025 00:00:00 GMThttps://kmpbits.com/posts/notifications-kmp/https://kmpbits.com/posts/notifications-kmp/All logic, all flows, all platform calls are written in Kotlin.Sun, 19 Oct 2025 00:00:00 GMThttps://kmpbits.com/posts/task-navigation3/https://kmpbits.com/posts/task-navigation3/A simple, clean, and shows how to combine multiple NavDisplays in a way that scales beautifully as your app grows.Sun, 12 Oct 2025 00:00:00 GMThttps://kmpbits.com/posts/loading-state-repository/https://kmpbits.com/posts/loading-state-repository/Why handling loading in your repository isn’t bad architecture, it’s actually a sign of experience and clean design.Wed, 23 Jul 2025 00:00:00 GMThttps://kmpbits.com/posts/background-sync-kmp/https://kmpbits.com/posts/background-sync-kmp/How to keep your app busy while your users (and you) sleep.Thu, 10 Jul 2025 00:00:00 GMThttps://kmpbits.com/posts/vanilla-php-icecream/https://kmpbits.com/posts/vanilla-php-icecream/A funny and honest story about bugs, PHP, and how one vanilla ice cream helped me realize that talking to myself was actually my greatest debugging tool.Fri, 27 Jun 2025 00:00:00 GMThttps://kmpbits.com/posts/netflow-part1/https://kmpbits.com/posts/netflow-part1/A real-world story of how one Android-first library became a Kotlin Multiplatform (KMP) journey.Tue, 24 Jun 2025 00:00:00 GMThttps://kmpbits.com/posts/ios26-liquid-glass/https://kmpbits.com/posts/ios26-liquid-glass/A stunning leap in visual design that only native apps truly get to experience.Mon, 16 Jun 2025 00:00:00 GMThttps://kmpbits.com/posts/ktor-kmp/https://kmpbits.com/posts/ktor-kmp/Bring Retrofit’s simplicity to Kotlin Multiplatform with Ktorfit — type-safe networking that just works everywhere.Tue, 10 Jun 2025 00:00:00 GMThttps://kmpbits.com/posts/kmp-swiftui/https://kmpbits.com/posts/kmp-swiftui/Differences between KMP and FlutterSat, 07 Jun 2025 00:00:00 GMThttps://kmpbits.com/posts/koin-annotations/https://kmpbits.com/posts/koin-annotations/Koin Annotations on Compose MultiplatformSat, 31 May 2025 00:00:00 GMThttps://kmpbits.com/posts/kmp-project-creation/https://kmpbits.com/posts/kmp-project-creation/If you’ve been curious about Kotlin Multiplatform (KMP) or already building cross-platform apps, I’ve got some great news for you.Tue, 20 May 2025 00:00:00 GMT