To cite package ‘rgeodesy’ in publications use:

  Sumner M (2026). _rgeodesy: R Interface to Rust Geodesy_. R package
  version 0.1.0, <https://github.com/hypertidy/rgeodesy>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {rgeodesy: R Interface to Rust Geodesy},
    author = {Michael Sumner},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://github.com/hypertidy/rgeodesy},
  }