To cite package ‘cppally’ in publications use:

  Christofides N (2026). _cppally: A 'C++20' API for R_. R package
  version 0.1.0.9000, <https://github.com/nicchr/cppally>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {cppally: A 'C++20' API for R},
    author = {Nick Christofides},
    year = {2026},
    note = {R package version 0.1.0.9000},
    url = {https://github.com/nicchr/cppally},
  }