To cite package ‘setwidth’ in publications use:

  Aquino J, Couturier D (2025). _setwidth: Automatically Set the Width
  Option on Terminal Emulators_. R package version 1.1.0,
  <https://CRAN.R-project.org/package=setwidth>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {setwidth: Automatically Set the Width Option on Terminal Emulators},
    author = {Jakson Aquino and Dominique-Laurent Couturier},
    year = {2025},
    note = {R package version 1.1.0},
    url = {https://CRAN.R-project.org/package=setwidth},
  }