When making an R package, following the advice of https://r-pkgs.org/index.html, you seemingly need to put your package description in two separate places. Once, in the Description field of the DESCRIPTION file (described here), and a second time in the package documentation that will be parsed by roxygen2 (described here). For the package documentation, I'm aware that this is useful for other things, such as @import statements, but you still need a @description section, and devtools::check() will complain if you do not.
However, this seems to me to be the same information: a short but multi-sentence description of your package. Is my understanding correct? If yes, is there a way to only write the description once, and copy it during the package build process? If not, what are the differences in the text that should be put in each location?