Karoo - Running the Home Assistant APK

So I have a HammerHead Karoo (v3, the new one) and it will run Android apps. Some more successfully than others.

See this as an example.

So I downloaded the HomeAssistant Android app APK, and side-loaded it.

When I go to open the app, it just says

Please Contact Car Services.

Can anyone guess what might cause this, or did I download the wrong APK, or … any other ideas ?

Maybe try the “minimal” version from FDroid?