To cite package ‘lifepack’ in publications use:

  Allerslev O (2025). _lifepack: Insurance Reserve Calculations_. R
  package version 0.0.8, <https://github.com/oskarallerslev/lifepack>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {lifepack: Insurance Reserve Calculations},
    author = {Oskar Allerslev},
    year = {2025},
    note = {R package version 0.0.8},
    url = {https://github.com/oskarallerslev/lifepack},
  }