Thank you for taking on maintenance of this essential package!
?bit64::integer64 is basically a vignette. It is quite informative and interesting to read, but I couldn't find it easily on the pkgdown site. It doesn't seem to appear in the Package Index. It was easy enough to find in search though, "bit64 package" locates https://bit64.r-lib.org/reference/bit64-package.html. I eventually found that it's sometimes linked in the "See also" sections for some functions.
Wondering if it should be featured more prominently on the website, e.g., a "Package overview" link on the home page or from the package index. Is the information generally current? It references versions 0.8 and 0.9, but nevertheless seems like a valuable resource.
Apology in advance if this is user error and I'm just not seeing the link in an obvious place.