To cite package ‘gridtext’ in publications use:

  Wilke C, Wiernik B (2024). _gridtext: Improved Text Rendering Support
  for 'Grid' Graphics_. R package version 0.1.5,
  <https://github.com/wilkelab/gridtext>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {gridtext: Improved Text Rendering Support for 'Grid' Graphics},
    author = {Claus O. Wilke and Brenton M. Wiernik},
    year = {2024},
    note = {R package version 0.1.5},
    url = {https://github.com/wilkelab/gridtext},
  }