Uses the sad-phone artwork to convey that something's wrong.
A color has to be given to help convey the issue in constrained
situations where no proper logging happens.
Requires a cross-compilation fix for fbterm (nixos/nixpkgs#72107).
This may stop the display-manager from starting correctly, I think it
prevents X from automatically switching to the correct vt. Requires
some further investigation :)
* Move adb to a separate module. It used to be in stage-1, but it is no
longer stage-1 specific, as it is now started in stage-2 as well.
* After switching to stage-2 kill the old adbd and start a new one.
Otherwise, passing configuration to the NixOS modules system would
become harder, for "outside-in" builds, and would make it harder to
integrate into a nixos-rebuild type build.
While it is an RK3399 derivative, we'll identify all devices as their
manufacturer does. Meaning that this is an OP1.
Though this seems useless at first glance, this allows us to put
conditionals on OP1 specific features or misfeatures, if any.
