Every [Linux based] OS usually needs some sort of HAL to wrap [ioctl] driver calls into APIs that can be consumed by more than one process at a time. Nokia/Moblin/Sailfish use Freedesktop style HALs, i.e. stuff like Wayland, Pipewire, anything accessible over DBus (which also implies extremely slow IPC by any standards; mach ipc on apple's darwins is probably faster [sobs]).

Basically I'm suggesting that we might need a whole new OS on top of the Linux kernel.