To cite package ‘lightsout’ in publications use:

  Attali D (2024). _lightsout: Implementation of the 'Lights Out'
  Puzzle Game_. R package version 0.3.2, ,
  <https://github.com/daattali/lightsout>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {lightsout: Implementation of the 'Lights Out' Puzzle Game},
    author = {Dean Attali},
    year = {2024},
    note = {R package version 0.3.2, 
},
    url = {https://github.com/daattali/lightsout},
  }