To cite package ‘yum’ in publications use:

  Peters G (2023). _yum: Utilities to Extract and Process 'YAML'
  Fragments_. R package version 0.1.0,
  <https://gitlab.com/r-packages/yum>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {yum: Utilities to Extract and Process 'YAML' Fragments},
    author = {Gjalt-Jorn Peters},
    year = {2023},
    note = {R package version 0.1.0},
    url = {https://gitlab.com/r-packages/yum},
  }