LICENCE

The majority of this repository is licensed under the MIT License. 
However, the file `spd.py` is a derivative work of code from Meta Platforms, Inc. 
and is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License.

See below for details.

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LICENSE FOR ALL FILES EXCEPT spd.py (MIT License)
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MIT License

Copyright (c) 2025 Antoine Collas

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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LICENSE FOR spd.py (CC BY-NC 4.0)
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The file `spd.py` contains code adapted from `facebookresearch/riemannian-fm`.

Copyright (c) Meta Platforms, Inc. and affiliates.

This specific file is licensed under the Creative Commons Attribution-NonCommercial 
4.0 International Public License (CC BY-NC 4.0).

You are free to:
- Share: copy and redistribute the material in any medium or format
- Adapt: remix, transform, and build upon the material

Under the following terms:
- Attribution: You must give appropriate credit, provide a link to the license, 
  and indicate if changes were made.
- NonCommercial: You may not use the material for commercial purposes.

Full license text: https://github.com/facebookresearch/riemannian-fm/blob/main/LICENSE