To cite package ‘amatrix.metal’ in publications use:

  Buchsbaum B (2026). _amatrix.metal: Metal Sparse Backend for
  'amatrix' on macOS_. R package version 0.1.0,
  <https://github.com/bbuchsbaum/amatrix>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {amatrix.metal: Metal Sparse Backend for 'amatrix' on macOS},
    author = {Bradley Buchsbaum},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://github.com/bbuchsbaum/amatrix},
  }