This function is deprecated and does nothing.
Recent versions of pak do not need a
pak_setup(mode = c("auto", "download", "copy"), quiet = FALSE)
Where to get the packages from. "download" will try to download them from CRAN. "copy" will try to copy them from your current "regular" package library. "auto" will try to copy first, and if that fails, then it tries to download.
Whether to omit messages.
The path to the private library, invisibly.