Sto sviluppando un pacchetto software e vorrei renderlo disponibile (e la fonte) per uso personale, accademico o educativo, ma non per uso commerciale . Esiste una tale licenza? Idealmente, dovrebbe essere reciproco, in modo che se qualcuno pubblica una versione modificata, dovrà concedere gli stessi diritti.
In alternativa, sarebbe possibile modificare la GPLv3 in modo tale da proibirne l'uso commerciale e concedere diritti solo agli utenti non commerciali?
Conosco un progetto (omnet ++) che fa qualcosa di simile. La licenza dà il permesso per uso personale, accademico o educativo, ma non per uso commerciale: link
Dicono che la licenza è simile alla GPL.
ACADEMIC PUBLIC LICENSE ...This license contains the terms and conditions of using OMNeT++ in noncommercial settings: at academic institutions for teaching and research use, and at non-profit research organizations. You will find that this license provides noncommercial users of OMNeT++ with rights that are similar to the well-known GNU General Public License, yet it retains the possibility for OMNeT++ authors to financially support the development by selling commercial licenses. In fact, if you intend to use OMNeT++ in a "for-profit" environment, where research is conducted to develop or enhance a product, is used in a commercial service offering, or when a commercial company uses OMNeT++ to participate in a research project (for example government-funded or EU-funded research projects), then you need to obtain a commercial license for OMNeT++. In that case, please contact the Author to inquire about commercial licenses.
What are the rights given to noncommercial users? Similarly to GPL, you have the right to use the software, to distribute copies, to receive source code, to change the software and distribute your modifications or the modified software. Also similarly to the GPL, if you distribute verbatim or modified copies of this software, they must be distributed under this license.
By modeling the GPL, this license guarantees that you're safe when using OMNeT++ in your work, for teaching or research. This license guarantees that OMNeT++ will remain available free of charge for nonprofit use. You can modify OMNeT++ to your purposes, and you can also share your modifications. Even in the unlikely case of the authors abandoning OMNeT++ entirely, this license permits anyone to continue developing it from the last release, and to create further releases under this license...
Would it be possible to modify the GPLv3 in such a way that it forbids commercial use and grants rights only to non-commercial users?
No.
La Licenza Pubblica Generica GNU è stessa un documento protetto da copyright, ed è non disponibile sotto i termini della licenza gratuita:
Copyright (C) 2007 Free Software Foundation, Inc. http://fsf.org/
Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
Non hai il permesso di prendere la licenza e adattarla alle tue esigenze. Puoi modellare una nuova licenza su di essa, ma dovrebbe essere una riscrittura di base, non una semplice modifica dei termini della GPL.
Leggi altre domande sui tag licensing