To cite package ‘capybara’ in publications use:

  Vargas Sepulveda M (2025). _capybara: Fast and Memory Efficient
  Fitting of Linear Models with High-Dimensional Fixed Effects_. R
  package version 0.9.1, <https://CRAN.R-project.org/package=capybara>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {capybara: Fast and Memory Efficient Fitting of Linear Models with
High-Dimensional Fixed Effects},
    author = {Mauricio {Vargas Sepulveda}},
    year = {2025},
    note = {R package version 0.9.1},
    url = {https://CRAN.R-project.org/package=capybara},
  }