Documenting R's internal C API with roxygen2?

hi

Just wondering if someone had thought of organising notes about the internal C API with an R package (roxygen2)? Or would that be too heretic?

In other words, something like Hadley's r-internals (https://github.com/hadley/r-internals) but with the neatness of Rd pages in RStudio...

Glad to hear your opinion.

RM