To cite package ‘yaml’ in publications use:

  Stephens J, Simonov K (2025). _yaml: Methods to Convert R Data to
  YAML and Back_. R package version 2.3.11.9000,
  <https://github.com/r-lib/yaml>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {yaml: Methods to Convert R Data to YAML and Back},
    author = {Jeremy Stephens and Kirill Simonov},
    year = {2025},
    note = {R package version 2.3.11.9000},
    url = {https://github.com/r-lib/yaml},
  }