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9 votes

Is it possible to use a library under the EUPL license for a commercial closed-source project?

Is EUPL alone compatible with proprietary softwares? Short answer: Yes, you can use an EUPL library in your proprietary application. There are lots of information about this topic on the official ...
N. Gimenez's user avatar
8 votes
Accepted

Dual licensing AGPL 3.0/EUPL 1.2

So long as you are the sole copyright holder (or have the consent of all copyright holders), you can license code under any combination of licenses you like, including mutually incompatible ones (e.g. ...
Philip Kendall's user avatar
7 votes
Accepted

Is the EUPL circumventable?

EUPLv1.2 s5 has a "trapdoor" provision, and says that If the Licensee Distributes or Communicates Derivative Works or copies thereof based upon both the Work and another work licensed under ...
MadHatter's user avatar
  • 49.6k
6 votes
Accepted

Does the European Union Public Licence (EUPL) close the SaaS/ASP Loophole?

Answering my own question is not ideal. However, after further research, I was able to find the answer in the official documentation of the EUPL, available here. The guidelines, published on July 2021,...
quadratecode's user avatar
6 votes

LGPL that covers network-distributed use cases/web applications?

There isn't a particularly good solution. I would give up on trying to achieve a network copyleft effect in your case. The AGPL-3.0 lets you define additional permissions per section 7. Indeed, the ...
amon's user avatar
  • 39.1k
6 votes

Is an open-source license an incentive for companies to buy an exception?

Copyleft terms like those in the GNU GPL place obligations on distribution of the software. Therefore, copyleft terms place an incentive to purchase an exception (i.e., a separate, non-copyleft ...
apsillers's user avatar
  • 36.3k
5 votes

Changing the open source license of a forked project (EUPL to GPL)

Ah, the joys of licensing lacking salience during academic code development. Alice has developed a software, 'Sierra' - starting from a preexisting educational code The first question is the ...
MadHatter's user avatar
  • 49.6k
5 votes
Accepted

License for research projects

This question seems to me to sit at the intersection of two sets of community norms: the scientific community's reproducibility and openness requirements, and the free software community's licensing ...
MadHatter's user avatar
  • 49.6k
4 votes
Accepted

Meeting the "state changes" requirement in licenses

The EUPL says the following with respect to "stating changes": The Licensee must cause any Derivative Work to carry prominent notices stating that the Work has been modified and the date of ...
Brandin's user avatar
  • 2,710
4 votes
Accepted

When is Nodemailer not free?

Reading their license (EUPL 1.1), it's a copyleft license: According to its article 5, the EUPL is also copyleft in order to avoid any exclusive appropriation of the ...
dsolimano's user avatar
  • 359
3 votes

Dual licensing AGPL 3.0/EUPL 1.2

This is indeed one case where, as the original or sole copyright holder, dual licensing EUPL / AGPL makes sense, since the two licenses are both copyleft and similar on the key point of covering "...
P-E Schmitz's user avatar
2 votes
Accepted

How to explicitly allow static linking EUPL licensed library from differently licensed code?

EUPL is not very clear about whether linking EUPL licensed library creates derivative work It is unlikely to be clear, since that isn't a question of a licence, but of copyright law. It's also not a ...
MadHatter's user avatar
  • 49.6k
2 votes

Can I make a closed-source game if part of it utilizes a EUPL-licenced code?

If your game is a derivative work (which it likely is unless you're very sure it isn't) of the EUPL software it will also have to be released under the EUPL. See section 5 in the license text: ...
Mans Gunnarsson's user avatar
2 votes
Accepted

Redistribution of modified fonts, originally licensed under Apache 2.0

Is it OK if I retain the original name of the font? The conditions in Section 6 of the Apache 2.0 license is specifically about trademarks: Trademarks. This License does not grant permission to ...
Philippe Ombredanne's user avatar
2 votes

Does the European Union Public Licence (EUPL) close the SaaS/ASP Loophole?

It looks obvious that the definition in EUPL article 1 (unmodified in all EUPL versions so far) assimilates "communication" to "distribution" and therefore targets and covers SaaS: ...
P-E Schmitz's user avatar
2 votes

How to use technically dual-licensed software?

Is it necessary to make such choice and declaration? No, it is not needed to make an explicit choice and declaration on which license you choose to follow. It is even possible to use the library in a ...
Bart van Ingen Schenau's user avatar
1 vote
Accepted

How do I indicate modifications for EUPL? Where do I distribute source?

You need to comply with all the terms of the EUPL license, which includes the obligations listed in section 5 (partially quoted here): Attribution right: The Licensee shall keep intact all copyright, ...
Martin_in_AUT's user avatar
1 vote

LGPL that covers network-distributed use cases/web applications?

You wrote: "I have found ... the "European Union Public License" which do cover the "network use counts as distribution"; however, I'm not an expert at reading legalese - I've ...
P-E Schmitz's user avatar
1 vote

Does the European Union Public Licence (EUPL) close the SaaS/ASP Loophole?

Having been through several rounds of comments with the OP (and earlier versions of this answer, for which many thanks, quadratecode) I've come to the position that the EUPL does not apply to SaaS in ...
MadHatter's user avatar
  • 49.6k

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