BBN Marine OS 32-bit version 2021-06-08 (free and open source)
has some new pre-installed features:
1. Android control with scrcpy. You can enable USB debugging on your Android phone, then plug it in into your pi4 and control it from pi screen with touch or mouse.
2. Spotify via raspotify. Playing music from Spotify on your phone (if you have premium account) to your pi4. If your phone and pi are on same WiFi from Spotify app select lysmarine device.
3. PC-NavTex for those who have NASA Marine USB NavTex receiver
4. AirPlay audio support for iPhone
5. Mopidy is included and configured with YouTube, mpd server, radio
6. USB GPS, dAISy AIS USB should be mostly plug and play.
7. SignalK, PyPilot, OpenCPN, AvNav are all preconfigured to talk to each other
8. Many apps for decoding marine radio traffic, SDR support, WinLink
9. Optional add-ons such as QtVLM
text-to-speech, widewine DRM for watching Netflix etc
10. Many plugins for OpenCPN and SignalK are included, saillogger
11. On-screen touch keyboard
12. Right click emulation for touchscreen
13. VNC server and client
Give it a try
https://github.com/bareboat-necessities/lysmarine_gen
Thanks