To cite trackdown in publications use:

  Emily Kothe, Claudio Zandonella Callegher, Filippo Gambarota, Janosch
  Linkersdörfer and Mathew Ling (2021). trackdown: Collaborative
  Writing and Editing of R Markdown (or Quarto / Sweave) Documents in
  Google Drive. https://doi.org/10.5281/zenodo.5167319

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {trackdown: Collaborative Writing and Editing of R Markdown (or Quarto / Sweave) Documents in Google Drive},
    author = {Emily Kothe and Claudio Zandonella Callegher and Filippo Gambarota and Janosch Linkersdörfer and Mathew Ling},
    year = {2021},
    note = {R package version 1.1.1},
    url = {https://github.com/claudiozandonella/trackdown},
    doi = {10.5281/zenodo.5167319},
  }