sem_cython12 - LICENCE Copyright (c) 2026 Sevana / Valeri Sitnikov. All rights reserved. This document grants limited rights to use the Software (defined below) under specific conditions. By downloading, installing, or using the Software you accept the terms set out below. If you do not accept these terms, do not use the Software. ================================================================ 1. DEFINITIONS ================================================================ "Software" means the sem_cython12 library, including all source code, compiled binaries, documentation, examples, configuration files, and any other materials distributed as part of this repository, together with any modifications, patches, or derivative works thereof. "Licensor" means Sevana / Valeri Sitnikov, the entity that owns the copyright to the Software. "You" / "Licensee" means the individual or legal entity exercising rights under this licence. "Research Use" means use of the Software exclusively for one or more of the following purposes: (a) academic research conducted at a degree-granting institution and not directly funded by a commercial sponsor for the purpose of producing a commercial product; (b) education, including teaching, coursework, theses, and student projects; (c) personal study, self-education, and individual experiments that do not generate revenue; (d) evaluation of the Software for the purpose of deciding whether to obtain a commercial licence (limited to a reasonable evaluation period of no more than ninety (90) days); (e) non-profit scientific work whose results are published openly and from which the user does not derive financial gain. "Commercial Use" means any use of the Software that is not Research Use, including but not limited to: (a) integration of the Software, in whole or in part, into a product or service offered to third parties for compensation; (b) deployment of the Software within an enterprise to support a revenue-generating activity, regardless of whether the Software itself is sold; (c) use of the Software in consulting, advisory, or professional-services engagements where compensation is received; (d) any use whose direct or indirect purpose is to derive financial benefit, competitive advantage, or other commercial value; (e) use by any for-profit organisation in the course of its ordinary business operations. ================================================================ 2. GRANT FOR RESEARCH USE ================================================================ Subject to your compliance with this licence, the Licensor grants you a non-exclusive, non-transferable, non-sublicensable, royalty-free, worldwide right to use, copy, modify, and run the Software solely for Research Use. You may share copies of the Software, including modifications, with other parties exercising Research Use, provided that: (a) this licence file accompanies every copy you distribute; (b) you do not represent the Software, or any derivative work, as your own original creation; (c) you do not sublicense the Software under terms more permissive than this licence. ================================================================ 3. COMMERCIAL USE ================================================================ Commercial Use of the Software is NOT granted under this licence. Any Commercial Use without a separate written commercial licence from the Licensor is prohibited and constitutes a material breach of this licence and an infringement of the Licensor's rights. To obtain a commercial licence, contact the Licensor at: sales@sevana.biz The Licensor will provide commercial licensing terms upon request and reserves the right to grant or decline a commercial licence at its sole discretion. ================================================================ 4. NO WARRANTY ================================================================ 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, ACCURACY, TITLE, AND NON-INFRINGEMENT. THE LICENSOR DOES NOT WARRANT THAT: (a) the Software will operate uninterrupted or error-free; (b) the Software will be free of defects, viruses, or other harmful components; (c) the Software will meet the Licensee's requirements; (d) any results obtained from the Software will be accurate, reliable, or fit for any particular purpose. You assume all risk associated with installation, configuration, operation, and use of the Software. Any decisions or actions taken in reliance on the Software are made at your own risk. ================================================================ 5. LIMITATION OF LIABILITY ================================================================ TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL THE LICENSOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING BUT NOT LIMITED TO PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THE SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. The Licensor's total aggregate liability under this licence shall not exceed zero (0) US Dollars (USD). ================================================================ 6. TERMINATION ================================================================ This licence remains in effect until terminated. The licence terminates automatically and without notice if you breach any of its terms. In particular, any Commercial Use without a separate written commercial licence from the Licensor constitutes immediate breach. Upon termination, you must: (a) cease all use of the Software; (b) destroy all copies of the Software in your possession or control, including any modifications or derivative works; (c) certify in writing to the Licensor, on request, that you have done so. The Licensor may terminate this licence at any time by giving written notice to you. The disclaimers in sections 4 and 5 survive termination. ================================================================ 7. NO TRANSFER OF OWNERSHIP ================================================================ All right, title, and interest in and to the Software, including all intellectual property rights therein, remain with the Licensor. This licence does not transfer ownership of the Software, of any modification, or of any derivative work to the Licensee. This licence does not grant you any rights to use the Licensor's name, trade marks, service marks, logos, or any other branding, except as required by section 8 (Attribution). ================================================================ 8. ATTRIBUTION ================================================================ When publishing research, papers, theses, talks, or any other academic output that uses or relies on the Software, please cite the Licensor and the repository URL: Sevana / Valeri Sitnikov, sem_cython12 (year of access), https://git.sevana.biz/vvs/sem_cython12 ================================================================ 9. GOVERNING LAW ================================================================ This licence is governed by and construed in accordance with the laws of the Republic of Estonia, without regard to conflict-of-laws principles. Any disputes arising out of or in connection with this licence shall be resolved in the competent courts of the Republic of Estonia, to whose jurisdiction both parties submit. ================================================================ 10. ENTIRE AGREEMENT ================================================================ This licence constitutes the entire agreement between you and the Licensor regarding the Software (other than any separate written commercial licence which may be executed) and supersedes all prior or contemporaneous understandings, written or oral. If any provision of this licence is held to be unenforceable, the remaining provisions shall continue in full force and effect. ================================================================ For commercial-licence inquiries: sales@sevana.biz ================================================================ END OF LICENCE