Since Michael is making this 'follow-up blog post' week, I guess I should jump in.
In my latest post on Kuali and the usage of the AGPL license, the key argument is that this license choice is key to understanding the Kuali 2.0 strategy - protecting KualiCo as a new for-profit entity in their future work to develop multi-tenant cloud hosting code.
What I have found interesting is that in most of my conversations with Kuali community people ,even for those who are disillusioned, they seem to think the KualiCo creation makes some sense. The real frustration and pushback has been on how decisions are made, how decisions have been communicated, and how the AGPL license choice will affect the community.
In the comments, Richard Stallman chimed in.
As the author of the GNU General Public License and the GNU Affero General Public License, and the inventor of copyleft, I would like to clear up a possible misunderstanding that could come from the following sentence:
"Any school or Kuali vendor, however, that develops its own multi-tenant cloud-hosting code would have to relicense and share this code publicly as open source."
First of all, thinking about “open source” will give you the wrong idea about the reasons why the GNU AGPL and the GNU GPL work as they do. To see the logic, you should think of them as free software licenses; more specifically, as free software licenses with copyleft.
The idea of free software is that users of software deserve freedom. A nonfree program takes freedom away from its users, so if you want to be free, you need to avoid it. The aim of our copyleft licenses is to make sure all users of our code get freedom, and encourage release of improvements as free software. (Nonfree improvements may as well be discouraged since we’d need to avoid them anyway.) See http://gnu.org/philosophy/free-software-even-more-important.html.
I don’t use the term “open source”, since it rejects these ethical ideas. (http://gnu.org/philosophy/open-source-misses-the-point.html.) Thus I would say that the AGPL requires servers running modified versions of the code to make the source for the running version available, under the AGPL, to their users.
The license of the modifications themselves is a different question, though related. The author of the modifications could release the modifications under the AGPL itself, or under any AGPL-compatible free software license. This includes free licenses which are pushovers, such as the Apache 2.0 license, the X11 license, and the modified BSD license (but not the original BSD license — see
Once the modifications are released, Kuali will be able to get them and use them under whatever license they carry. If it is a pushover license, Kuali will be able to incorporate those modifications even into proprietary software. (That’s what makes them pushover licenses.)
However, if the modifications carry the AGPL, and Kuali incorporates them into a version of its software, Kuali will be bound by the AGPL. If it distributes that version, it will be required to do so under the AGPL. If it installs that version on a server, it will be required by the AGPL to make the whole of the source code for that version available to the users of that server.
To avoid these requirements, Kuali would have to limit itself to Kuali’s own code, others’ code released under pushover licenses, plus code for which it gets special permission. Thus, Kuali will not have as much of a special position as some might think.
Dr Richard Stallman
President, Free Software Foundation (gnu.org, fsf.org)
Internet Hall-of-Famer (internethalloffame.org)
I appreciate this clarification and Stallman's participation here at e-Literate, and it is useful to understand the rationale and ethics behind AGPL. However, I disagree with the statement "Thus, Kuali will not have as much of a special position as some might think". I do not think he is wrong, per se, but the combination of both the AGPL license and the Contributor's License Agreement (CLA) in my view does ensure that KualiCo has a special position. In fact, that is the core of the Kuali 2.0 strategy, and their approach would not be possible without the AGPL usage.
Note: I have had several private conversations that have helped me clarify my thinking on this subject. Besides Michael with his comment to the blog, Patrick Masson and three other people have been very helpful. I also interviewed Chris Coppola from KualiCo to understand and confirm the points below. Any mistakes in this post, however, are my own.
It is important to understand two different methods of licensing at play - distributing code through an APGL license and contributing code to KualiCo through a CLA (Kuali has a separate CLA for partner institutions and a Corporate CLA for companies).
- Distribution - Anyone can download the Kuali 2.0 code from KualiCo and make modifications as desired. If the code is used privately, there is no requirement for distributing the modified code. If, however, a server runs the modified code, the reciprocal requirements of AGPL kick in and the code must be distributed (made available publicly) with the AGPL license or a pushover license. This situation is governed by the AGPL license.
- Contribution - Anyone who modifies the Kuali 2.0 code and contributes it to KualiCo for inclusion into future releases of the main code grants a license with special permission to KualiCo to do with the code as they see fit. This situation is governed by the CLA and not AGPL.
I am assuming that the future KualiCo multi-tenant cloud-hosting code is not separable from the Kuali code. In other words, the Kuali code would need modifications to allow multi-tenancy.
For a partner institution, their work is governed by the CLA. For a company, however, the choice on whether to contribute code is mutual between that company and KualiCo, in that both would have to agree to sign a CLA. Another company may choose to do this to ensure that bug fixes or Kuali enhancements get into the main code and do not have to be reimplemented with each new release.
For any contributed code, KualiCo can still keep their multi-tenant code proprietary as their special sauce. For distributed code under AGPL that is not contributed under the CLA, the code would be publicly available and it would be up to KualiCo whether to incorporate any such code. If KualiCo incorporated any of this modified code into the main code base, they would have to share all of the modified code as well as their multi-tenant code. For this reason, KualiCo will likely never accept any code that is not under the CLA - they do not want to share their special sauce. Chris Coppola confirmed this assumption.
This setup strongly discourages any company from directly competing with KualiCo (vendor protection) and is indeed a special situation.