To cite package ‘hardhat’ in publications use:

Frick H, Vaughan D, Kuhn M (2026). hardhat: Construct Modeling Packages. R package version 1.4.3.9000, https://github.com/tidymodels/hardhat.

Corresponding BibTeX entry:

  @Manual{,
    title = {hardhat: Construct Modeling Packages},
    author = {Hannah Frick and Davis Vaughan and Max Kuhn},
    year = {2026},
    note = {R package version 1.4.3.9000},
    url = {https://github.com/tidymodels/hardhat},
  }