There's some definite prior art here where they worked on that a LOT.
https://www.erlang-factory.com/static/upload/media/149858389...
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You know, I read those slides when they were new, and I apparently just completely forgot about it.
Not that it's not interesting, just that my brain is dumb sometimes.
Unfortunately, the hydros project website is gone. I'm not sure if it moved somewhere.
here's what I dug up
Thanks! There's some really interesting things here. I chose to interface with some basic hardware only from my kernel, but hydros uses Erlang to interface with the IO-APIC and a bunch of other stuff. They've even got NIFs to do sti/cli from Erlang.