To cite package ‘screening’ in publications use:

  Last F (2025). _screening: What the Package Does (one line, title
  case)_. R package version 0.0.0.9000,
  <https://github.com/wwrechard/screening>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {screening: What the Package Does (one line, title case)},
    author = {First Last},
    year = {2025},
    note = {R package version 0.0.0.9000},
    url = {https://github.com/wwrechard/screening},
  }