It's weird to see "犬" and "馬" written in katakana.
The control system is supposed to be in complete isolation from the media system. The media one is usually a customised Android. If you find instructions online, feel free to do whatever you want with it. The worst case scenario is that you won't be able to listen to music or to navigate.
With that being said, just install anything you like to the media system. Any Linux dostro can be an automobile distro.
Is there a filter to block all these EU OS posts, please?
As I see it, it's hardly an open source project but just some malicious start up attempting to get funded by EU then flee off.
Show me your production ready OS, not your POC boot screens.
And perhaps properly name your product. Naming it after 'EU' is self-righteous. What comes next? Earth OS?
Get it lower... even lower... alright, low enough to reach that American Standard.