nirs4all-tools is dual-licensed, consistent with the nirs4all ecosystem policy:

    CeCILL-2.1 OR AGPL-3.0-or-later

You may use, modify, and redistribute this software under the terms of either
the CeCILL Free Software License Agreement v2.1 or the GNU Affero General Public
License version 3 (or, at your option, any later version), at your choice.

A separate commercial license is also available.

Canonical license texts:
  - CeCILL-2.1: https://cecill.info/licences/Licence_CeCILL_V2.1-en.html
  - AGPL-3.0:   https://www.gnu.org/licenses/agpl-3.0.txt

Copyright (c) CIRAD and the nirs4all authors.
Contact: nirs4all-admin@cirad.fr

The complete canonical texts and commercial-license notices are distributed in
the `LICENSES/` directory and included in every wheel and source distribution.
