Confetti 🎊

Kotlin/Compose Multiplatform GraphQL project (backend and clients) to allow viewing of conference information for a range of conferences.

Includes:

• Compose Multiplatform (CMP) clients (Android, Desktop and Web)
• Compose for Wear OS client (contributed by https://github.com/yschimke)
• Android Auto and Automotive OS (contributed by https://github.com/cmota)
• Apollo GraphQL based Kotlin Multiplatform shared code
• GraphQL backend

Contributors

Related posts

• Swift/Kotlin ViewModel alignment in a Kotlin Multiplatform project
• Using KMM-ViewModel library to share VM between iOS and Android
• Consuming Compose for iOS in a SwiftUI application
• Adding embeddings/RAG support to the Koog-based AI agent in Confetti
• On-device embeddings with EmbeddingGemma 2 in the Koog-based Confetti AI agent

Building

Use Android Studio/IntelliJ to build/run the Android client (requires a recent Android Studio release supporting AGP 9.1). Requires Xcode 26 or later for the iOS client (Apple silicon only — the Intel simulator target was removed). JDK 17+ is required.

UI tests

There's a Maestro UI test flow shared by the Android and iOS clients, run by CI on an emulator and a simulator (e.g. maestro test -e APP_ID=dev.johnoreilly.confetti maestro/Confetti.flow).

Screenshots

Gemini functionality

Gemini based talk recommendations for particuar conference are included in the mobile clients (if gemini_api_key configured in local.properties). Desktop client allows free entry of query.

API

The API is available at https://confetti-app.dev/graphql (IDE). You can query the list of conferences with conferences.id and chose what conference to query by passing a "conference" HTTP header