To cite package ‘ggh4x’ in publications use:

  van den Brand T (2024). _ggh4x: Hacks for 'ggplot2'_. R package
  version 0.2.8.9000, , <https://github.com/teunbrand/ggh4x>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {ggh4x: Hacks for 'ggplot2'},
    author = {Teun {van den Brand}},
    year = {2024},
    note = {R package version 0.2.8.9000, 
},
    url = {https://github.com/teunbrand/ggh4x},
  }