To cite 'resmush' in publications use:

  Hernangómez D (2024). _resmush: Optimize and Compress Image Files
  with reSmush.it_. doi:10.32614/CRAN.package.resmush
  <https://doi.org/10.32614/CRAN.package.resmush>,
  <https://dieghernan.github.io/resmush/>.

A BibTeX entry for LaTeX users is

  @Manual{R-resmush,
    title = {{resmush}: Optimize and Compress Image Files with {reSmush.it}},
    doi = {10.32614/CRAN.package.resmush},
    author = {Diego Hernangómez},
    year = {2024},
    version = {0.2.0},
    url = {https://dieghernan.github.io/resmush/},
    abstract = {Compress local and online images using the reSmush.it API service <https://resmush.it/>.},
  }