To cite package ‘rappdirs’ in publications use:

  Ratnakumar S, Mick T, Davis T (2024). _rappdirs: Application
  Directories: Determine Where to Save Data, Caches, and Logs_. R
  package version 0.3.3.9000, , <https://github.com/r-lib/rappdirs>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {rappdirs: Application Directories: Determine Where to Save Data, Caches,
and Logs},
    author = {Sridhar Ratnakumar and Trent Mick and Trevor Davis},
    year = {2024},
    note = {R package version 0.3.3.9000, },
    url = {https://github.com/r-lib/rappdirs},
  }