Zeff Alpha and Beta Licence Version 1, 23 October 2026 Copyright (c) 2026 Moritz Roessler. All rights reserved, except as granted below. 1. What this licence covers This licence applies to the software "Zeff" in its alpha and beta versions, meaning every version numbered below 1.0.0 (for example 0.1.0 or 0.9.3), in any form you received it: the program, its source code where it was made available to you, and its documentation (together, "the Software"). 2. What you may do While the Software is in alpha or beta, you may download, install and use the Software free of charge, for personal, non-commercial purposes only, on computers you own or control. "Personal, non-commercial purposes" means your own private life and your own private projects, for which you receive no payment and which do not serve a business, an employer, a client, a public authority or any other organisation. 3. What you may not do You may not, without a separate written licence from the copyright holder: a) use the Software for any commercial purpose, including for paid work, as an employee or freelancer, inside a company, public authority or other organisation, or to provide services to others; b) sell, rent, lease, sublicense, distribute, publish or otherwise make the Software or copies of it available to others, whether or not for payment (a link to the official download page is fine); c) modify, adapt, translate, or create derivative works of the Software, except to the extent you need to for your own permitted personal use, and never to distribute them; d) remove or change any copyright notice, this licence, or any notice that the Software is an alpha or beta version; e) use the Software to build a product or service that competes with it. 4. End of the free alpha and beta use The rights in section 2 apply to alpha and beta versions only. They do not apply to version 1.0.0 or any later version; those versions are offered under a separate, paid licence. The copyright holder may end the free alpha or beta use at any time by publishing a notice on the official website; you may then keep using the copy you already have under these terms until version 1.0.0 is released, but you will not be entitled to updates. Your rights under this licence end automatically if you break any of its terms. 5. Your data The Software stores your data on your own computer. This licence gives the copyright holder no rights to your data. 6. No warranty Alpha and beta versions are unfinished. They may contain errors, lose data or change without notice; keep backups. The Software is provided free of charge and "as is", without any warranty, express or implied, including fitness for a particular purpose, to the extent permitted by applicable law. 7. Limitation of liability To the extent permitted by applicable law, the copyright holder is not liable for any damage arising from the use of or the inability to use the Software, including loss of data, except for damage caused intentionally or by gross negligence, and except for injury to life, body or health. Liability under the German Product Liability Act (Produkthaftungsgesetz) remains unaffected. 8. Commercial licences and questions For a commercial licence, a licence for version 1.0.0 or later, or any question about this licence, write to: info@getzeff.com 9. Law This licence is governed by the laws of the Federal Republic of Germany. If any provision is invalid, the rest remains in effect.