Music Player for Local storage mp3 files for Android

Getting Started (current Legacy way):

Create account and get API key on MusixMatch -> enter API key in local.properties:
MUSIXMATCH_API_KEY_PROD=<your_api_key>
Connect device via USB or Wi-Fi and allow debugging in Settings -> Developer options -> Debugging

Note:
To show dev options section requires multiple taps on Settings -> About phone -> Build number

Push music files via command: adb -s <device_id> push <path to audio file on PC with file extension mp3> /sdcard/Download/<album_directory>/

Important note:
album_directory is important for correct association songs to album
/sdcard/Download is required path for audio files to be found

Compile & run app -> click on 3 dots in Toolbar -> select Add all audio files from SD -> files are shown immediately or try to restart app

Java -> Kotlin
God Activity/Fragment -> MVVM (Jetpack ViewModel) -> MVI ? + Clean (Presentation/Domain/Data) -> modularization via splitting on feature-modules -> share business logic for diff platforms via Kotlin Multiplatform ?
LiveData -> Kotlin Flow
SQLOpenHelper DB -> Room
AsyncTask/Threads/Handlers -> Kotlin Coroutines
RelativeLayout and nested layouts -> ConstraintLayout -> Compose ?
findViewById -> ViewBinding
Static dependencies -> Dagger 2 -> Hilt ?
Raw navigation calls -> Navigator abstraction
ViewPager -> ViewPager2
Android and 3rd party libs:
player bg color based on album cover colors - Palette API
audio playing - MediaPlayer API
photo - Picasso -> Glide ?
html parsing - Jsoup -> OkHttp + Retrofit ?
logging: Log -> Timber
testing: unit/integration - JUnit/Mockito, ui - Espresso, coverage - Kover
CI/CD: JetBrains TeamCity + Microsoft App Center