slack oss license 2019 05 22

2019-05-22

Time	Icon	Name	Message
05:47		shinyu	@shinyu set the channel purpose: FAQ and discussion about OSS license of Vivliostyle
05:50		shinyu	Vivliostyle.js is licensed under the GNU Affero General Public License v3.0 https://github.com/vivliostyle/vivliostyle.js/blob/master/LICENSE ``` GNU AFFERO GENERAL PUBLIC LICENSE Version 3, 19 November 2007 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. Preamble The GNU Affero General Public License is a free, copyleft license for software and other kinds of works, specifically designed to ensure cooperation with the community in the case of network server software. The licenses for most software and other practical works are designed to take away your freedom to share and change the works. By contrast, our General Public Licenses are intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for all its users. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for them if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs, and that you know you can do these things. Developers that use our General Public Licenses protect your rights with two steps: (1) assert copyright on the software, and (2) offer you this License which gives you legal permission to copy, distribute and/or modify the software. A secondary benefit of defending all users' freedom is that improvements made in alternate versions of the program, if they receive widespread use, become available for other developers to incorporate. Many developers of free software are heartened and encouraged by the resulting cooperation. However, in the case of software used on network servers, this result may fail to come about. The GNU General Public License permits making a modified version and letting the public access it on a server without ever releasing its source code to the public. The GNU Affero General Public License is designed specifically to ensure that, in such cases, the modified source code becomes available to the community. It requires the operator of a network server to provide the source code of the modified version running there to the users of that server. Therefore, public use of a modified version, on a publicly accessible server, gives the public access to the source code of the modified version. An older license, called the Affero General Public License and published by Affero, was designed to accomplish similar goals. This is a different license, not a version of the Affero GPL, but Affero has released a new version of the Affero GPL which permits relicensing under this license. 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06:13		shinyu	Due to the AGPL license, when you want to use Vivliostyle with closed source softwares it must be treated as a separate software. See also the related question https://vivliostyle.slack.com/archives/CJRP7PK6K/p1558401401034100 and its answers in #q-and-a. Hi, I have a question about the AGPL license. I work on a commercial software (a web application that is both SaaS and deployed on-premesis) that produces reports among other things, and I am wondering if I can use Vivliostyle without releasing the source code of my own software (I cannot do that.) I have done some reading about AGPL and there is some confusion, (and some companies like MongoDB have provided add-on promises or clarifications.) Is the intent that use of Vivliostyle should not be usable by any applications except for the relatively small number of web applications that also have the AGPL or GPL license? Thank you. (If the intent is to allow non-AGPL programs to be able to use this software, a clause like this to augment the AGPL may help accomplish that: http://mo.morsi.org/blog/2009/08/13/lesser_affero_gplv3/)