# Parr Source License — No AI Training, Version 1.0 Copyright (c) 2026 Ahmad Ali Parr This is a custom source-available license inspired by the Functional Source License. It is not the standard FSL and does not include an automatic grant of an Apache, MIT, or other future license. ## 1. Definitions "Licensor" means Ahmad Ali Parr. "Software" means the source code, documentation, examples, tests, and other materials that the Licensor makes available under this license. Separately licensed third-party materials remain governed by their respective licenses. "Competing Use" means making the Software available to others in a commercial product or service that substitutes for the Software, offers the same or substantially similar functionality as the Software, or substitutes for a product or service the Licensor offers using the Software as of the date the applicable version is made available. "AI Training" means using the Software, any portion of it, modifications or derivatives of it, or data derived from it as training material for an artificial intelligence or machine-learning model. This includes pretraining, fine-tuning, continued training, distillation, reinforcement learning, and constructing or supplying datasets for any of those purposes. Data derived from the Software includes synthetic training examples generated from its code or documentation. "Permitted Purpose" means any purpose that is neither a Competing Use nor AI Training. ## 2. License grant Subject to compliance with this license, the Licensor grants you a worldwide, nonexclusive, royalty-free license to use, copy, modify, create derivative works of, publicly perform, publicly display, and redistribute the Software for Permitted Purposes. Permitted Purposes include internal business use, personal use, education, research, and professional services provided to users who comply with this license, provided those activities do not constitute Competing Use or AI Training. Commercial use that is not a Competing Use or AI Training is permitted. ## 3. No AI training You may not use the Software for AI Training, or license, sell, distribute, or otherwise supply it or data derived from it for AI Training, without separate written permission from the Licensor. This restriction applies to commercial, noncommercial, educational, research, and internal activities alike. Using an existing AI model solely for inference, such as to review, explain, or modify the Software, is permitted if that activity is otherwise a Permitted Purpose and the Software and resulting derived data are not used for AI Training. This license does not prohibit training on unrelated material or on your own material that is independent of the Software. ## 4. Redistribution and notices If you redistribute the Software or any modification or derivative of it, you must include a copy of this license and preserve the copyright notices provided with the Software. You must identify your modifications and must not imply that the Licensor endorses them. The portions of a redistributed work that consist of the Software or its modifications or derivatives remain subject to this license. You may not grant recipients rights to those portions that conflict with this license. Independent components may retain their own licenses. ## 5. Patents To the extent a Permitted Purpose necessarily infringes patent claims controlled by the Licensor, the license grant includes a license under those claims. If you bring a patent claim alleging that the Software infringes or contributes to patent infringement, your patent license under this license terminates immediately. ## 6. Trademarks This license grants no rights to the Licensor's trademarks, trade names, service marks, or product names, except for reasonable attribution and identification of the origin of the Software. ## 7. Termination Your rights under this license terminate automatically if you violate its terms. Termination does not terminate the rights of recipients who obtained copies from you and remain in compliance. Reinstatement of your rights requires written permission from the Licensor. ## 8. No automatic conversion The Competing Use and AI Training restrictions do not expire automatically. There is no conversion to another license after two years or any other period. Any additional license grant requires a separate grant from the relevant rights holder. ## 9. Disclaimer of warranties TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NONINFRINGEMENT. ## 10. Limitation of liability TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL THE LICENSOR OR CONTRIBUTORS 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.