To cite package ‘rolldown’ in publications use:

  Xie Y (2024). _rolldown: R Markdown Output Formats for Storytelling_.
  R package version 0.1.1, <https://github.com/yihui/rolldown>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {rolldown: R Markdown Output Formats for Storytelling},
    author = {Yihui Xie},
    year = {2024},
    note = {R package version 0.1.1},
    url = {https://github.com/yihui/rolldown},
  }