To cite package ‘yaml12’ in publications use:

  Kalinowski T (2025). _yaml12: Fast 'YAML' 1.2 Parser and Formatter_.
  R package version 0.1.0.9000,
  <https://github.com/posit-dev/r-yaml12>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {yaml12: Fast 'YAML' 1.2 Parser and Formatter},
    author = {Tomasz Kalinowski},
    year = {2025},
    note = {R package version 0.1.0.9000},
    url = {https://github.com/posit-dev/r-yaml12},
  }