To cite package ‘pkgicon’ in publications use:

  Gruson H (2025). _pkgicon: A Local and Robust Way to Generate
  Favicons for Package Documentation Sites_. R package version
  0.0.0.9000, <https://github.com/bisaloo/pkgicon>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {pkgicon: A Local and Robust Way to Generate Favicons for Package
Documentation Sites},
    author = {Hugo Gruson},
    year = {2025},
    note = {R package version 0.0.0.9000},
    url = {https://github.com/bisaloo/pkgicon},
  }