🎵 Tune Together

A real-time collaborative music playback Android app built with Kotlin and Jetpack Compose. Users can create or join rooms, upload songs, invite members, and control synchronized playback across all connected users — just like a virtual party room!

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🚀 Features

• 🔊 Real-Time Synchronized Music Playback using ExoPlayer and WebSocket
• 📁 Upload Audio Files to Cloudinary during room creation
• 👥 Invite Users to Join Rooms for shared playback control
• 🔁 Playback Control Sync: Play, pause, seek, or change song — it reflects for everyone instantly
• 🔐 Google Sign-In and Firebase Authentication
• 📲 Push Notifications using Firebase Cloud Messaging (FCM)
• 🌐 WebSocket Communication for room and playback event handling
• 🧠 Clean Architecture with modular layers and dependency injection (Hilt)

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🛠️ Tech Stack

📱 Android

• Kotlin, Jetpack Compose, XML
• ExoPlayer – for audio streaming
• Hilt – for Dependency Injection
• OkHttp WebSocket Client – for real-time communication
• Coroutines & Flows – for async and state handling
• SharedPreferences – for local lightweight data persistence (e.g., auth/session/token)
• Firebase – Authentication, FCM

☁️ Backend

• Node.js, Express
• Cloudinary – for storing uploaded audio files
• MongoDB – for room and user data
• WebSocket – for real-time messaging and sync