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The Golden Path to Ship Kotlin Everywhere

Looking for the fastest way to get started with Kotlin Multiplatform? This presentation introduces the Golden Path to Ship Kotlin Everywhere—a practical workflow for building and shipping cross-platform apps using Kotlin Multiplatform, Compose Multiplatform, AI coding assistants, MCP tools, and the Kotlin ecosystem. You'll learn how to: * Create your first Kotlin Multiplatform project * Use AI to accelerate development * Build adaptive UIs with Compose Multiplatform * Integrate modern Kotlin libraries * Publish apps for Android, iOS, Web, and Desktop

Software◦
The Golden Path to Ship Kotlin Everywhere Shengyou Fan JetBrains Developer Advocate Shipaton Catfe 2026 Your Quick Guide for Shipaton
A month ago... • A app to show conference information • Swift-only • Widget supported
🤔 I want to make it MULTIPLATFORM to reach MORE USERS
Frontend Kotlin/JVM Cat.kt Cat.class IR Kotlin/Native Kotlin/Wasm Kotlin/JS Native binaries *.wasm *.js
Server Kotlin/JVM Web Kotlin/JS Desktop Kotlin/JVM Android Kotlin/JVM iOS Kotlin/Native Kotlin Multiplatform Kotlin/Wasm
My KMP Journey • Almost zero knowledge of mobile development • Reference from iOS and make it multiplatform • Theme, i18n, and widget supported • Develop with AI
• Foundation • AI teammate • Build • Ecosystem • Ship Road icons created by Magnific - Flaticon The Golden Path
Foundation
• Xcode (+ SDK + Command Line Tools + Simulator) • IntelliJ IDEA / Android Studio (+ SDK + Emulator) Gear Up
• Dev env checks (Preflight Checks) • Project template (Kotlin Multiplatform) • Language support (Kotlin / Swift) • Device control (iOS Emulator + Android Simulator) Unlock the KMP Magic
From IDEs From web interface https://terrakok.github.io/Compose-Multiplatform-Wizard/ https://kmp.new Ready in Minutes
• AndroidApp → Android project • iosApp → iOS project • shared → Share code - androidMain → Android platform code - iosMain → iOS platform code - commonMain → code across platforms Where Does My Code Go?
AI teammate
• Agents (via ACP Protocol) - Free Junie EAP during Shipaton • MCP servers (Context7, Klibs.io, Compose Hot Reload, etc.) • Agent skills (e.g. Kotlin, Compose, Android) • AGENTS.md (generate it via AI) • SDD frameworks Set Up Your AI Teammate
Build
• Generate UI from scratch - Google Stitch - Figma Make • Iterate on U I - Compose Hot Reload MCP server included Build UI with Compose
MohamedRejeb/Calf Compose Adaptive UI
Native UI Compose Multiplatform Use Native When It Makes Sense
https://kotlinlang.org/docs/multiplatform/ios-liquid-glass.html Mix and Match
• Klibs.io: libraries from the community - MCP server included • kotlinx.*: libraries from the Kotlin team - Ktor, Exposed - Coroutine - I/O, DateTime - Serialization https://klibs.io Secret ingredients
Ecosystem
https://jb.gg/kmp-shipaton-2026 Starter Guide for Shipaton
Kotlin Multiplatform Docs & Samples Compose Multiplatform Docs & Samples Docs & Samples
Ask JetBrains Developer Advocates about Kotlin Multiplatform, Compose Multiplatform, libraries, and publishing. A live session on August 25 to answer your questions – plus Kotlin Multiplatform, Compose Multiplatform, and publishing tips to get you unblocked. Get Help
Ship
🚀 Ship you app! • 📦 Publish your app - Automation with fastlane • 💰 Add subscriptions - RevenueCat MCP server • 📈 Measure with Analytics - Analytics and crash reporting • 🔁 Keep improving and grow - Build in public and giving back
Retrospective
• Foundation • AI teammate • Build • Ecosystem • Ship Road icons created by Magnific - Flaticon The Golden Path
• Start simple - Don't start from scratch • Move fast - Let AI accelerate you • Ship early - Learn, iterate, and improve Key takeaways
🏆 Ship Kotlin Everywhere Award • 🥇 $15,000 • 🥈 $10,000 • 🥉 $5,000
Have a Nice Kotlin! https://jb.gg/kmp-shipaton-2026