To cite package ‘filelock’ in publications use:

  Csárdi G (2024). _filelock: Portable File Locking_. R package version
  1.0.3.9000, , <https://github.com/r-lib/filelock>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {filelock: Portable File Locking},
    author = {Gábor Csárdi},
    year = {2024},
    note = {R package version 1.0.3.9000, 
},
    url = {https://github.com/r-lib/filelock},
  }