To cite package ‘piamenv’ in publications use:

  Sauer P (2024). _piamenv: Package environment support for PIAM_. R
  package version 0.5.4, <https://github.com/pik-piam/piamenv>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {piamenv: Package environment support for PIAM},
    author = {Pascal Sauer},
    year = {2024},
    note = {R package version 0.5.4},
    url = {https://github.com/pik-piam/piamenv},
  }