Would that lead to some kind of hierarchy like:
fedoras grub:
-> kernel x.yy.z
-> kernel a.bb.d
-> Windows
-> OpenSUSE
-> Ubuntu
Where OpenSUSE and Ubuntu link to their own grub (or whatever)?
If thats it, it sounds sane to me. What would be needed? I guess one
could iterate over all bootable partitions and add them to our own
bootloader. That would not _need_ any interaction with any other distro,
but if they could adopt that mechanism, the above tree would become
navigable as OpenSUSEs grub could link back to fedoras, right?