joreilly/

PeopleInSpace

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PeopleInSpace is a Kotlin Multiplatform sample project using SwiftUI, Jetpack Compose, Compose for Wear/Desktop/Web, and a Ktor backend to serve space-related data. It targets multiple platforms and includes a shared KMP codebase, with a small Ktor backend and an MCP server option.

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Apache-2.0license

2019since

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Reviewgenerated from repository data · Aug 5, 2026

What it is

Kotlin Multiplatform project with SwiftUI, Jetpack Compose, Compose for Wear OS, Compose for Desktop and Compose for Web clients along with Ktor backend. Currently running on Android, Wear OS, iOS, Desktop, Web, JVM back end, and MCP server using shared KMP code.

How it works

Uses a shared KMP module (common) for Ktor, SQLDelight, Koin, view models and shared Compose Multiplatform UI. Individual modules provide platform-specific clients:

app: Android (Jetpack Compose) including Glance widget
wearApp: Wear OS (Compose for Wear OS)
PeopleInSpaceSwiftUI: iOS (SwiftUI)
compose-desktop: Desktop client
compose-web: Web client (Wasm)
backend: Ktor server providing data from The Space Devs API and Open Notify API
mcp-server: Model Context Protocol server exposing shared KMP code

Getting started

Requirements: JDK 17, a recent version of Android Studio (for Android/Wear) and Xcode (for iOS).

Install/run commands from README:

Android: run the app configuration from Android Studio (or ./gradlew :app:installDebug)
Wear OS: run the wearApp configuration from Android Studio (or ./gradlew :wearApp:installDebug)
iOS: open PeopleInSpaceSwiftUI in Xcode and run from there
Desktop: ./gradlew :compose-desktop:run
Web (Wasm): ./gradlew :compose-web:wasmJsBrowserDevelopmentRun
Backend: ./gradlew :backend:run (or run Server.kt directly from Android Studio). After doing that you should then for example be able to open http://localhost:9090/astros_local.json in a browser.

Tests: ./gradlew :common:jvmTest; Maestro UI test flow: maestro test maestro/PeopleInSpace.flow.

Backend deployment

./gradlew :backend:shadowJar
gcloud app deploy backend/build/libs/backend-all.jar --appyaml=backend/src/jvmMain/appengine/app.yaml

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