To cite package ‘mode’ in publications use:

  FitzJohn R, Hill A (2024). _mode: Solve Multiple ODEs_. R package
  version 0.1.14, <https://github.com/mrc-ide/mode>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {mode: Solve Multiple ODEs},
    author = {Rich FitzJohn and Alex Hill},
    year = {2024},
    note = {R package version 0.1.14},
    url = {https://github.com/mrc-ide/mode},
  }