- Set up Flutter project structure with pubspec.yaml and dependencies
- Implement audio playback using just_audio and audio_service packages
- Create minimalistic dark theme UI with Material Design 3
- Add core features:
* Music player with play/pause/skip controls
* Progress bar with seeking capability
* Volume control
* Now playing display with track info
* Playlist management with add/remove functionality
* File picker for loading audio files
- Configure Android and iOS platform-specific settings
- Add proper permissions for audio playback and file access