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There's been a bit of a furore in the emulation community lately centred around the PlayStation 1 emulator DuckStation, which has now seen two license changes recently. As far as I'm aware, DuckStation is the most popular emulator for Sony's classic PS1 console, due to it being fast and accurate.

Up until recently it was open source under the GPL, then on September 1st it changed over to the PolyForm Strict License, and then again on September 13th it was changed over to the CC-BY-NC-ND license. This places a number of restrictions on the project like no commercial use and no derivatives allowed. That means, according to the creator, that no one else is allowed to package it up either as their change mentioned "Packaging is still **not** permitted, since it is effectively a modified/derived work".

Replying to a user unhappy about it on the GitHub, the creator said this:

I am well aware of how licenses work. That's why I changed, to make it very clear and a deterrent due to certain parties violating the old license, by not attributing and stripping my copyright. Packagers being collateral damage was a beneficial side-effect, considering they don't clearly mark their versions as modified (also a GPL requirement), break functionality, and expect upstream to provide support.

I have the approval of prior contributors, and if I did somehow miss you, then please advise me so I can rewrite that code. I didn't spend several weekends rewriting various parts for no reason. I do not have, nor want a CLA, because I do not agree with taking away contributor's copyright.

Also, I don't appreciate the threats. If you are not a copyright holder, then you are not in a position to make any demands. I find it especially ironic, considering when the GPL was actually violated on multiple occasions, even as recently as a few months ago, nobody ever takes issue with that.

I've restricted the repository to prior contributors, and if they have any concerns, they are more than welcome to do so here. If this turns into harassment, then I'll just shut the whole thing down, because I'm way too busy with my actual job to be dealing with unsubstantiated drama from a hobby that is supposed to be fun. Please consider how the community would benefit from that.

With that in mind, this means DuckStation as of the latest changes is no longer open source. You could say it's "source available", or whatever your chosen way is to describe code you can view but has restrictions on it.

Article taken from GamingOnLinux.com.
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DrMcCoy Sep 17
Quoting: amataiThis is not, this is a violation of GPL license if the contributor did not explicitly give him permission to relicense their work.

And the main dev stenzek claims he has permission by everyone.

Quoting: amataiBtw, can CC-BY-ND even be compiled ?

CC doesn't make any distinction between source and binary, so compiling creates a derivative work you're not allowed to redistribute.

EDITED to merge a double-post after somebody deleted their own post:

You, on your own, can compile it. As long as it's just you and nobody knows about it, you can do anything. You can compile it, you can change it to say "stenzek is a doodoo head" at startup, knock yourself out.

Distributing such a changed version, including just a compiled binary of the unchanged sources (because for the CC, both are the same, a derivative work), that's what's not legal. No uploading it to the internet, no giving it to your friends, probably not even letting other people use it on your own system.


Last edited by DrMcCoy on 17 September 2024 at 3:34 pm UTC
The best PS1 emulator, code is still available on Github, so we can still compile it from sources and dev still provides appimage and flatpak packages, so I don't think it will change a lot of things for end user like me.
I read dev comments but i still don't understand why he bothered to change licence...


Last edited by legluondunet on 17 September 2024 at 7:45 pm UTC
redneckdrow Sep 17
Yeah, I apologize for that , I was correcting my error, and then my comment was immediately redundant when I got done editing it.
Quoting: reaperx7The GPL is a very flawed license when it comes to allowing a developer to have absolute control over him/her project. For some projects its fine, but for others it's a total headache.

This is why many developers in the past have used BSDL, MIT, and other more restricive licenses to maintain control and prevent unauthorized forking.
So, first, it's hardly surprising that the GPL is flawed when it comes to allowing a developer to have absolute control over a project, because it was designed precisely to stop developers (and companies) from having absolute control over projects. The point of the GPL is for users to have modification rights, much the way recipe users have modification rights over recipes. Lots of people use Free Software today because they like the way it can be developed collaboratively, with lots of people contributing to some central repository that is somewhat controlled by someone, but that was not the point.

Second, the BSD and MIT licenses are not more restrictive--to the contrary, they are more permissive. They do, particularly the BSD licenses, make it easier to fork a project to a different, more restrictive one . . . but the original code in the permissive license would remain.
There’s a lot of drama going on for years and years between stenzek and the retroarch leads. Both public and behind the scenes.

If you’ve been part of the emulation scene for a long time then you probably not surprised by this.

The mgba dev has had the same blow ups with the same people.

And also Near.

The best emu devs out there have become frustrated and angry with that projects leads and it always goes to shit.
DrMcCoy Sep 17
Yes, as an ex ScummVM dev... The retroarch people aren't exactly well loved among many projects and devs in that space. I make no secret of my personal views there either, I think they're scum, and not the good kind.

Just because I think stenzek has issues and he's had rows with the retroarch crowd, doesn't mean I'd go kiss their feet. More than one party can be awful at the same time.
CatKiller Sep 18
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Quoting: Purple Library GuySecond, the BSD and MIT licenses are not more restrictive--to the contrary, they are more permissive. They do, particularly the BSD licenses, make it easier to fork a project to a different, more restrictive one . . . but the original code in the permissive license would remain.
See, for example, Mac OS and PlayStation's OS: both using FreeBSD and both absolutely making plenty of money for those companies without any control by anyone involved with the FreeBSD project.
Idesmi Sep 18
Quoting: DrMcCoyYes, as an ex ScummVM dev... The retroarch people aren't exactly well loved among many projects and devs in that space. I make no secret of my personal views there either, I think they're scum, and not the good kind.

Just because I think stenzek has issues and he's had rows with the retroarch crowd, doesn't mean I'd go kiss their feet. More than one party can be awful at the same time.

I would like to know more than vague claims. What's up with "retroarch (libretro) people"?
Quoting: DrMcCoyThe Creative Commons licenses (except, arguably, CC0) are a terrible, terrible choice for software.

CC0 is not even recommended due to it neglecting to protect against software patents.

Mind you, I dislike all other CC licenses as I find forced attribution aggravating (despiting agreeing its good to maintain a paper trail).
monyarm Sep 18
Didn't he do this once already? Try to change the license despite having GPL licensed submissions?
Found it: https://www.reddit.com/r/emulation/comments/sjvkmb/duckstations_oss_license_violations_are_these/
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