This package includes the following external libraries:

ANN - Approximate Nearest Neighbor Library
(https://www.cs.umd.edu/~mount/ANN/)
License: LGPL-2.1-or-later
Copyright (c) 1997-2010 University of Maryland, Sunil Arya, and David M. Mount
The upstream copyright and license notice is included in
inst/licenses/ANN-Copyright-Notice.txt.

Spectra (https://spectralib.org/)
License: MPL-2.0
Copyright (c) 2016-2024 Yixuan Qiu and contributors
The included source files retain their MPL-2.0 notices and link to the license
text at https://mozilla.org/MPL/2.0/.

Individual Spectra linear-algebra headers also retain copyright notices for
Gael Guennebaud and Jitse Niesen. Eigensolver headers contributed by the
Netherlands eScience Center retain that organization's copyright notices.

The Spectra contribution inst/include/Spectra/contrib/LOBPCGSolver.h is
Copyright Anna Araslanova and Yixuan Qiu and is distributed under the MIT
license stated in that source file.