Help regarding package installation: .Renviron, .Rprofile, R_LIBS, R_LIBS_SITE, and R_LIBS_USER Oh my!

[cderv]

@HenrikBengtsson

To know the location of ~/.Renviron , which is not always obvious on Windows

usethis::edit_r_environ() is very useful for this! It will open in your editor the file.