EDIT: Looks like the source code does exist for hardware update releases: https://mstdn.social/@msw/115339926795894337
I'm sorry, what?! I did some searching on their dev site and couldn't find any references to license or source code repository for it. If this is true, I hope the lawsuit comes swift.
https://www.fudzilla.com/news/60944-amazon-ditches-android-for-its-linux-based-vega-os