To cite package ‘mime’ in publications use:

  Xie Y (2024). _mime: Map Filenames to MIME Types_. R package version
  0.12.1, <https://github.com/yihui/mime>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {mime: Map Filenames to MIME Types},
    author = {Yihui Xie},
    year = {2024},
    note = {R package version 0.12.1},
    url = {https://github.com/yihui/mime},
  }