To cite package ‘santoku’ in publications use:

  Hugh-Jones D (2026). _santoku: A Versatile Cutting Tool_. R package
  version 1.2.1, <https://github.com/hughjonesd/santoku>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {santoku: A Versatile Cutting Tool},
    author = {David Hugh-Jones},
    year = {2026},
    note = {R package version 1.2.1},
    url = {https://github.com/hughjonesd/santoku},
  }