it's a really cool idea, but i have a couple things i want to say.
i've elided your post simply because they don't pertain to any
particular piece of it, but (i think) to the idea as a whole.

(1) don't we kinda need an "in-kernel linker" for this to work
properly?  or at least more smoothly?

(2) lkms are currently rather broken wrt certain configurations or
features.  sysctl, for one, which i was well into fixing before i
decide to look at something totally unrelated (to either of them) and
then discovered a wart.  later i discovered a couple more.  bleah.

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