To cite package ‘odin.js’ in publications use:

  FitzJohn R (2024). _odin.js: 'odin' 'JavaScript' support_. R package
  version 0.1.11, <https://github.com/mrc-ide/odin.js>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {odin.js: 'odin' 'JavaScript' support},
    author = {Rich FitzJohn},
    year = {2024},
    note = {R package version 0.1.11},
    url = {https://github.com/mrc-ide/odin.js},
  }