To cite package ‘Rook’ in publications use:

  Horner J, Biederstedt E (2026). _Rook: HTTP Web Server for R_. R
  package version 1.2.1, <https://CRAN.R-project.org/package=Rook>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {Rook: HTTP Web Server for R},
    author = {Jeffrey Horner and Evan Biederstedt},
    year = {2026},
    note = {R package version 1.2.1},
    url = {https://CRAN.R-project.org/package=Rook},
  }