To cite package ‘fru’ in publications use:

  Kursa MB, Piwoński KP (2026). _fru: A Blazing Fast Implementation of
  Random Forest_. R package version 0.0.7,
  <https://gitlab.com/mbq/fru>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {fru: A Blazing Fast Implementation of Random Forest},
    author = {Miron Bartosz Kursa and Krzysztof Piotr Piwoński},
    year = {2026},
    note = {R package version 0.0.7},
    url = {https://gitlab.com/mbq/fru},
  }