To cite package ‘sfgpu’ in publications use:

  Kotov E (2026). _sfgpu: Explicit CPU, CUDA, and Metal Distances for
  Projected Points_. R package version 0.1.0,
  <https://github.com/e-kotov/sfgpu>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {sfgpu: Explicit CPU, CUDA, and Metal Distances for Projected Points},
    author = {Egor Kotov},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://github.com/e-kotov/sfgpu},
  }