To cite package ‘luigg’ in publications use:

  Kenny C (2024). _luigg: Mario Themed 'ggplot2' Extensions_. R package
  version 0.0.0.9000, , <https://github.com/christopherkenny/luigg>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {luigg: Mario Themed 'ggplot2' Extensions},
    author = {Christopher T. Kenny},
    year = {2024},
    note = {R package version 0.0.0.9000, 
},
    url = {https://github.com/christopherkenny/luigg},
  }