Kotlin Multiplatform Playground!

This repo shows a Gradle multi-project build structure that uses the Kotlin Multiplatform to build a JVM, JS, Desktop and Compose Web (wasm) applications.

Install OpenJDK EA Build

# Mac OS
$ curl -s "https://get.sdkman.io" | bash
$ sdk i java 23.ea-open
$ sdk u java 23.ea-open

Build & Run

$ ./gradlew buildAndPublish

Run Modules

# Kotlin JVM
$ ./gradlew :common:run
$ ./gradlew :backend:jvm:run
$ docker run \
        -it \
        --rm \
        --pull always \
        --workdir /app \
        --publish 8080:8080 \
        --publish 8081:8081 \
        --name kotlin-mpp-playground \
        --mount type=bind,source=$(pwd),destination=/app,readonly \
        openjdk:23-slim /bin/bash -c "printenv && nohup jwebserver -b 0.0.0.0 -p 8081 -d / & backend/jvm/build/libs/jvm-app"

$ ./gradlew :backend:jvm:jibDockerBuild
$ docker run -it --rm --name jvm-app -p 8080:8080 -p 9898:9898 sureshg/jvm

# Kotlin JS
$ ./gradlew :web:jsBrowserProductionRun -t
$ ./gradlew kotlinUpgradeYarnLock

# Kotlin Native
$ ./gradlew :backend:native:macOsUniversalBinary
$ ./gradlew :backend:native:jibDockerBuild
$ docker run -it --rm --name native-app sureshg/native

# Kobweb
$ kobweb run -p compose/web
$ ./gradlew :compose:web:kobwebStart -t
$ ./gradlew :compose:web:kobwebStop

# Compose Desktop
$ ./gradlew :compose:desktop:runDistributable
$ ./gradlew :compose:desktop:packageDistributionForCurrentOS
$ ./gradlew :compose:desktop:suggestModules

# Publishing
$ ./gradlew publishAllPublicationsToLocalRepository

# Benchmark
$ ./gradlew :benchmark:benchmark

# Dependencies
$ ./gradlew :backend:jvm:listResolvedArtifacts
$ ./gradlew createModuleGraph
$ ./gradlew generateChangelog

# Clean
$ ./gradlew cleanAll

# Gradle Best Practices
$ ./gradlew -p gradle/build-logic :common-plugins:bestPracticesBaseline
$ ./gradlew checkBuildLogicBestPractices

# GitHub Actions lint
$ actionlint

Deployed App and Docs

• Web App
• Docs
• Coverage

Resources

• 🔍 Kotlin Multiplatform Package Search
• 🎨 Compose Multiplatform Template
• 📏 Compose Lint Rules

Module Dependency

%%{
  init: {
    'theme': 'neutral'
  }
}%%
graph LR
    subgraph backend
        jvm
        native
    end
    subgraph compose
        desktop
        web
    end
    subgraph dep-mgmt
        bom
        catalog
    end
    subgraph meta
        compiler
        ksp
    end
    subgraph compiler
        compiler
        plugin
    end
    subgraph ksp
        ksp
        processor
    end
    plugin --> common
    benchmark --> common
    web --> common
    desktop --> common
    client --> common
    native --> common
    processor --> common
    jvm --> common
    jvm --> web

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