To cite pkgdepR in publications use:

  Ed Peyton (2022). A package for tracking and visualizing package
  function dependencies. URL: https://pkgdepr.org/

A BibTeX entry for LaTeX users is

  @Misc{pkgdepR,
    title = {pkgdepR: A package for tracking and visualizing package function dependencies},
    author = {Ed Peyton},
    year = {2022},
    url = {https://pkgdepr.org},
  }