The authors of the dependency Rust crates:

aho-corasick (version 1.0.2):
  Andrew Gallant

amd (version 0.2.2):
  

autocfg (version 1.1.0):
  Josh Stone

blas-src (version 0.9.0):
  Balasubramanian Narasimhan
  Ivan Ukhov
  Jed Brown
  Stefan Kroboth
  Toshiki Teramura
  bluss

blas-sys (version 0.7.1):
  Andrew Straw
  Corey Richardson
  Ivan Ukhov
  bluss

blas (version 0.22.0):
  Andrew Straw
  Corey Richardson
  Ivan Ukhov
  Mason Smith
  Toshiki Teramura

cfg-if (version 1.0.0):
  Alex Crichton

clarabel (version 0.5.1):
  Paul Goulart

darling_core (version 0.14.4):
  Ted Driggs

darling_macro (version 0.14.4):
  Ted Driggs

darling (version 0.14.4):
  Ted Driggs

derive_builder_core (version 0.11.2):
  Colin Kiegel
  Pascal Hertleif
  Jan-Erik Rediger
  Ted Driggs

derive_builder_macro (version 0.11.2):
  Colin Kiegel
  Pascal Hertleif
  Jan-Erik Rediger
  Ted Driggs

derive_builder (version 0.11.2):
  Colin Kiegel
  Pascal Hertleif
  Jan-Erik Rediger
  Ted Driggs

enum_dispatch (version 0.3.11):
  Anton Lazarev

extendr-api (version 0.4.0):
  andy-thomason
  Thomas Down
  Mossa Merhi Reimert
  Claus O. Wilke
  Hiroaki Yutani
  Ilia A. Kosenkov
  Michael Milton

extendr-engine (version 0.4.0):
  andy-thomason
  Thomas Down
  Mossa Merhi Reimert
  Claus O. Wilke
  Hiroaki Yutani
  Ilia A. Kosenkov

extendr-macros (version 0.4.0):
  andy-thomason
  Thomas Down
  Mossa Merhi Reimert
  Claus O. Wilke
  Hiroaki Yutani
  Ilia A. Kosenkov

fnv (version 1.0.7):
  Alex Crichton

ident_case (version 1.0.1):
  Ted Driggs

lapack-src (version 0.9.0):
  Balasubramanian Narasimhan
  Ivan Ukhov
  Mitsutoshi Aoe
  Stefan Kroboth
  Toshiki Teramura

lapack-sys (version 0.14.0):
  Andrew Straw
  Corey Richardson
  Ivan Ukhov
  Toshiki Teramura

lapack (version 0.19.0):
  Andrew Straw
  Crozet Sébastien
  David Greenberg
  Ivan Ukhov
  Pavel Potocek
  Selvavignesh Vedamanickam
  Toshiki Teramura

lazy_static (version 1.4.0):
  Marvin Löbel

libc (version 0.2.146):
  The Rust Project Developers

libR-sys (version 0.4.0):
  andy-thomason
  Thomas Down
  Mossa Merhi Reimert
  Claus O. Wilke
  Ilia A. Kosenkov
  Hiroaki Yutani

memchr (version 2.5.0):
  Andrew Gallant
  bluss

num-complex (version 0.4.3):
  The Rust Project Developers

num-traits (version 0.2.15):
  The Rust Project Developers

once_cell (version 1.18.0):
  Aleksey Kladov

paste (version 1.0.12):
  David Tolnay

proc-macro2 (version 1.0.60):
  David Tolnay
  Alex Crichton

quote (version 1.0.28):
  David Tolnay

r-src (version 0.1.0):
  Balasubramanian Narasimhan

regex-syntax (version 0.7.2):
  The Rust Project Developers

regex (version 1.8.4):
  The Rust Project Developers

strsim (version 0.10.0):
  Danny Guo

syn (version 1.0.109):
  David Tolnay

syn (version 2.0.18):
  David Tolnay

thiserror-impl (version 1.0.40):
  David Tolnay

thiserror (version 1.0.40):
  David Tolnay

unicode-ident (version 1.0.9):
  David Tolnay
