To cite package ‘usethis’ in publications use:

Wickham H, Bryan J, Barrett M, Teucher A (2026). usethis: Automate Package and Project Setup. R package version 3.2.1.9000, https://github.com/r-lib/usethis.

Corresponding BibTeX entry:

  @Manual{,
    title = {usethis: Automate Package and Project Setup},
    author = {Hadley Wickham and Jennifer Bryan and Malcolm Barrett and
      Andy Teucher},
    year = {2026},
    note = {R package version 3.2.1.9000},
    url = {https://github.com/r-lib/usethis},
  }