To cite package ‘express’ in publications use:

  El-Kamand S (2024). _express: Visualise Gene-Level Expression Data_.
  R package version 0.0.0.9000, <https://github.com/selkamand/express>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {express: Visualise Gene-Level Expression Data},
    author = {Sam El-Kamand},
    year = {2024},
    note = {R package version 0.0.0.9000},
    url = {https://github.com/selkamand/express},
  }