To cite package ‘RcppInt64’ in publications use:

  Eddelbuettel D (2024). _RcppInt64: 'Rcpp'-Based Helper Functions to
  Pass 'Int64' and 'nanotime' Values Between 'R' and 'C++'_. R package
  version 0.0.5, <https://github.com/eddelbuettel/rcppint64>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {RcppInt64: 'Rcpp'-Based Helper Functions to Pass 'Int64' and 'nanotime'
Values Between 'R' and 'C++'},
    author = {Dirk Eddelbuettel},
    year = {2024},
    note = {R package version 0.0.5},
    url = {https://github.com/eddelbuettel/rcppint64},
  }