Questions tagged [gpl]

Gnu General Public License

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What license would be correct for an online version of a proprietary board Game?

For a student project we created on online version of "The Game" and now we have to decide which open source license (MIT License, GPL, Apache License, etc.) would be the most suitable for ...
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1 vote
0 answers
89 views

Proprietary software using hardware Arduino with firmware GPLv3

Currently, we have developed proprietary (non-open source) software that runs on Windows, MacOS, and Linux using the Qt library (LGPL license). This software is using an external hardware through the ...
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2 answers
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May I use FFmpeg in my program and what do they mean by making the source code available?

I am currently building a video streaming platform for my school. Because I want to serve videos in different resolutions, I use ffmpeg-static and fluent-ffmpeg. I recently checked the licenses and ...
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2 votes
1 answer
38 views

Is there a license like AGPL for datasets and machine learning models?

The GNU Affero General Public License is a modified version of the ordinary GNU GPL version 3. It has one added requirement: if you run a modified program on a server and let other users communicate ...
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2 answers
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Does AGPL apply to products created by the software, or just the software?

I'm a 3D modeler by trade, and in the past I've used some software to create a base mesh for humanoid renders. I'm seeing now that, while it used to be AGPL and CC0, it's now entirely AGPL, and by ...
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If a paper under the CC BY-SA 4.0 describes & designs a software X & its implications, does said software must be under a compatible license?

Let's say I wrote a paper which describes & designs a software and its implications, and I license it under the CC BY-SA 4.0. If some else (or me) writes said software, does it need to be in a ...
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-2 votes
1 answer
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Any licensing issues with an AGPL Docker container used for integration testing? [closed]

Consider a proprietary software service consisting of micro-services that use Amazon S3 for storage. For integration testing I would like to put together a docker-compose file that consists of ...
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2 votes
1 answer
58 views

GPL-2 and LGPL sources in youtube video

Suppose that a developer D wants to a make youtube video about a text editor that D has created. D wants to use some real world source code segments as examples, which D will show and edit in the ...
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1 answer
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Enforcing the GPL license on software

I published a software project under the GNU Affero General Public License version 3.0. I have written the code behind it, hence I am the copyright holder. According to the AGPL license, anyone who ...
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1 vote
1 answer
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Using code snippets contributed by you in a library/project with restrictive license

Years ago I contributed some code snippets to a C++ library released with GPL license. Currently I am working on some closed-source commercial project where these snippets could be very helpful. ...
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2 answers
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MIT and GPL-3.0 conflicting licence

I am creating a project for myself based off of two different GitHub projects. Code from each of the two projects are used in my project, and I am planning on releasing it to the public. The conflict ...
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16 votes
1 answer
2k views

How long does a GPL licencee have to respond to a source code request before it becomes a GPL violation?

I have requested source code for a product that contains software licensed under GPL 2. The product includes a written offer to provide source code if you send a written request by email. The offer is ...
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1 vote
1 answer
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What are the implications if I include third party logos in the acknowledgements section of my copyrighted book?

I am writing a book on my recent research. I am going to register a copyright for this work and publish the book through a major publishing house (Springer). My editor and I have agreed in our ...
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9 votes
3 answers
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GPLv3-licensed project on Github seems to try to restrict commercial use

I found an interesting project (tool for numerical simulations) on Github with the following paragraph in its README: You can redistribute it and/or modify it under the terms of the GNU General ...
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GPL-v3 using along with closed source via rest api

I want to use CMS distributed under GPL-v3 licenses. I am building a web application with closed code and my app invokes via REST API backend under GPL-v3. Question: is it legal to use GPL-v3 along ...
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GPLv3 modifications without distribution

I'm curious about the boundaries of GPLv3. I understand you can't distribute a binary of modified GPLv3-licensed code without releasing the source. I would assume you can modify GPLv3-licensed code, ...
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Where is the line on what makes GPL derivative vs product?

Suppose, I am writing a proprietary software using a GPL tool, as in: compiling a binary using compiler licensed under GPL. I understand that in typical scenario, an output of GPL (or any) ...
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2 votes
1 answer
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What public evidence suggests that AWS violated the AGPL by deploying MongoDB?

A few years ago (2018), the software package MongoDB, freely available including source code, was relicensed. The original license was the infamous AGPL, which required anybody offering modified ...
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1 answer
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Use of gplv2 licensed code in server

Suppose that someone develops a web application, and found a piece of code that they would like to add to their server. But that code is licensed under the GPLv2 license. Does that mean that if they ...
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6 votes
1 answer
762 views

Who can publish GPLv4?

I was thinking about the or later part that is often used in licensing software. When reading https://www.gnu.org/licenses/gpl-3.0.html, I've found this: The Free Software Foundation may publish ...
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28 votes
8 answers
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Do I really have to Open Source my project?

I'm currently working on a software which uses another software under the GPL version 3 license: https://github.com/ViaVersion/ViaVersion/blob/dev/LICENSE Now someone just came to me and said I have ...
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1 answer
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Licensing a code which imports other module

I made a discord bot using discord.py...and want to publish it in GitHub but what license do I publish it in? the discord.py is licensed under MIT and it states that "the distributors include the ...
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1 vote
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Propagation of GPLv3 licensed software

"0. Definitions" section of GPLv3 says that: To “convey” a work means any kind of propagation that enables other parties to make or receive copies. Is it also included to "any kind of ...
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1 vote
1 answer
440 views

Does Fat Fritz 2 violate GPL?

Fat Fritz 2 is a chess engine recently published and sold by Chessbase. Release article. It uses the Stockfish binary, and replaces the NNUE in Stockfish with its own. Stockfish itself is licensed ...
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2 votes
1 answer
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Does AGPL 3 requeired to give free services

I found the following lines about AGPL3 and I am not sure about the correct way to interpret it. Does AGPL3 oblige me to give my cloud services that connected to the app for free or is it only the ...
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Selling WordPress themes [duplicate]

I was wondering if I can sell a WordPress theme which is built on top of those themes that comes with WordPress when it's downloaded or download one for free, then modify it completely(I mean here, ...
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-1 votes
1 answer
59 views

Can we use GPL3.0 software in our own software?

We're interested in a WordPress plugin available in the WordPress repository licensed with GPL3.0. We'd like to make some modifications, and then use it for a commercial project. Is this legal?
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1 answer
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Can I relicense GPL software I make even if there are contributors?

I am about to release an open-source library (it's a derivative, but the original is MIT licensed). I'm considering releasing under GPLv3, especially since my understanding is that as the copyright ...
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2 answers
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Could this interpretation of open source be compatible with GPL 2?

Supposing I made a fork of a project licensed under GPL 2 and made some modifications to it, could I then release source only by request, for only snapshots and not the stable build, without making ...
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1 vote
1 answer
234 views

Stolen code in a GPL repo

Quite an odd thing has happened. A software author as released a repo under GPL 3.0 license But inside that repo is code that the author doesn't own in any way and has no license. Now when people fork ...
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1 vote
2 answers
64 views

Ownership of sites and smart contracts

If I am an owner of a site, I can place restrictions on its usage even if the site software is licensed under an open source license such as GPL or AGPL, right? Which law allows me to place such ...
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2 answers
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I believe [program] violates GPL, do I need to sue the author before using its source code?

Let's say there's a program ("ABC") which is licensed under GPL. There's a similar program ("CAD") on the market, which I believe is a modified ABC. It is therefore in violation of ...
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1 vote
2 answers
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Do I have to adhere to my own software licences for them to remain enforceable?

I have written a software application and an accompanying software library. When users use this application, they will write code externally to it which also makes use of the software library. The ...
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3 votes
2 answers
246 views

Does the acceptance of a software licence constitute a contract? Can such a contract be closed without using said software?

This question revolves around the (unresolved) question in the open source community, whether "dynamic linking" against a GPL-licensed library requires your software to be GPL-licensed, as well. I ...
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7 votes
2 answers
3k views

Copyright in copyleft licence?

Is the copyright mentioned in GPL v3 used just for the sake of defining the word? (It's not copyrighted, but the word encompasses the same actions that would violate the copyright if it was ...
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0 votes
1 answer
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Can I get benefits of others' contributions to my GPL licensed software to use these contributions in my proprietary software?

I have my own code of a software, purely coded by me. I am intending to open source it, GPLv3 or Apache 2.0. Then I will add them to Github to let others get benefits of source code and contribute ...
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0 votes
2 answers
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Can a company modify and use the source code of a GPLed library without selling it or releasing the modification?

I have a specific case here for which I could not find a clear answer here or on other pages. I am working for a company that is interested in using an open source code licensed under GPL v2.1. The ...
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1 vote
1 answer
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"GPL version N or later"-licensed code and publishing an EULA as GPL v4

Oftentimes source code is licensed as "GPL version N or later". But what stops some company from taking their EULA, publishing it as GPL version 4 and happily using whatever code they want to use in a ...
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-1 votes
1 answer
53 views

Selling second hand and copyright

If I sell a bit of GPL'ed software I am required to provide source code, or an offer of same. This is based on the "distribution" clause of the GPL. According to this question, if I sell GPL'ed ...
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2 votes
1 answer
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GPL and private sale

If a company sells a device containing GPL licensed code they need to provide the source code when asked. Does this apply to private sales, e.g. if I sell an used device that I bought on ebay, would ...
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2 votes
1 answer
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Implications of changing terms of a free license (LGPL, Apache, MIT, Eclipse, etc) after I started using software on old terms

While creating my software (as a developer / startup owner) I rely on the fact that I can use some (software) library for free. I also rely on the fact that I can use it for commercial purpose and ...
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1 vote
0 answers
66 views

Asking for the unencrypted version of a file in an open-source project?

Let's say that an open-source project, such as a GNU GPL one, uses git-crypt and has added private, encrypted files, such as ssh private keys to the committed git repository. Wouldn't John Doe be in ...
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3 votes
1 answer
139 views

GPL: Does changing makefiles and configurations considered as "modifications"?

I know that editing GPL source code is considered as a "modification", which means all the copyleft rules apply. However, most software includes configuration files and makefiles which you can tweak ...
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1 vote
3 answers
140 views

GPL-3.0's "Open-Sourceness", Images and Image Formats

I took an SVG image from a set which is distributed under GPL-3.0 and used it as (a large) part of an icon I made to a software of mine, which is also distributed under GPL-3.0. So far, everything is ...
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1 vote
2 answers
44 views

Copyright holder and license of the output files produced by a libre software

Consider for example the libre software LAMMPS, which uses GNU General Public License. The user writes an input file. Then the software performs some calculations based on the instructions in the ...
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0 votes
1 answer
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Enforce GPL v3.0 with software modules

I develop a software that consists of a core application and several optional modules. I would like to license the core and all modules that were developed by me under the GPL v3.0. In addition to ...
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3 votes
2 answers
150 views

Does utilizing "copyleft" programs like git and gcc imply that the output has to be under the same license?

GPL v2.0 states the following as git's license: b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to ...
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3 votes
2 answers
434 views

GPL Licensed code as separate process

We are going to use a GPL licensed application as separate process inside a docker. So here's how it works: Main app ships to client, it doesn't have any GPL code. Does have lots of things and ...
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0 votes
1 answer
151 views

Are there any AGPL-style licences that require source code modifications to be public?

So my understanding of the AGPL, is that it requires modifications to be distributed to the users of the network service, but I'm looking for a licence that would require any modifications (non-...
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5 votes
1 answer
225 views

How to enforce GPL if the copyright holder doesn't have access to the source code of violating software?

I'd like to publish a C library project that I have written on GitHub and license it under GPL, so I am doing some research on open source licenses and some confusion comes to mind. Let's say Evil ...
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