To cite package ‘emoji’ in publications use:

  Hvitfeldt E (2024). _emoji: Data and Function to Work with Emojis_. R
  package version 16.0.0, <https://CRAN.R-project.org/package=emoji>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {emoji: Data and Function to Work with Emojis},
    author = {Emil Hvitfeldt},
    year = {2024},
    note = {R package version 16.0.0},
    url = {https://CRAN.R-project.org/package=emoji},
  }