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

Thanks! This method works in relation to my windows home directory, but is there a way to set the minor version folders one level further from home e.g.:

"~/software/R/win-library/3.5"
instead of
"~/R/win-library/3.5"