Code change:
Hi there! I’m sorry to bother you with a ping. We realized that in the form of . All of our Nix expressions are meant to be MIT‐licensed, so this is a big problem, especially as packages using / may count as derivative works, potentially jeopardizing the licence status of Nixpkgs as a whole. We would therefore like to get permission from all contributors to this code to relicense their changes under the MIT license used for Nixpkgs. If you have any questions or concerns about this, please ask them in so that this issue can purely be for tracking the sign‐offs we’ve received. To agree to the relicensing, please reply to this issue with the following verbatim text: [x] [x] [x] [x] [x] [x] (confirmed via email) [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [x] [ ] [x] [x] [ ] (GitHub account is gone, although as this was just a treewide removal with no other changes it’s unlikely to be copyrightable) [x] Authors of unmerged pull requests in the old repository (just in case we ever take code from them): [x] [x] [ ] [x] [ ] [x] [x] [x] (I have not checked for unmerged PRs to this part of Nixpkgs yet because it’s a pain.)
Apparently I can only ping so many people at once; please look at the original issue text, sorry!
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs. PS: nice catch and thanks for taking care of it
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs. Like, sure, we still use it in our toolchain, and this move is very nice.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , and the pkgs/development/tools/yarn2nix-moretea directory of the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs or any other OSI considered free software license. IIRC if we get everyone else on the list, then will be fine.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
Just another gentle ping; if you could check the original post at respond as requested it’d help us resolve this licensing issue.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
While it wouldn't hurt to get approval from the last 4 people, I don't think we need that to move ahead: gebner only authored , a minimal change that I don't think would be copyrightable egasismus only authored , another minimal change that I don't think would be copyrightable chawki008 only authored a PR that was never merged: eqyiel also only authored a PR that was never merged:
Yeah, I agree those changes aren’t copyrightable. I did email the authors of them but I’ll proceed with opening a PR to do the relicensing now.
I agree to license all of my past contributions to , , and the pkgs/development/tools/yarn2nix-moretea directory of under the MIT license used by Nixpkgs.
Thanks so much to everyone for helping get this done so quickly, and for your contributions to the Nixpkgs ecosystem

Related discussion:
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You may not convey a covered work if you are a party to an arrangement with a third party that is in the business of distributing software, under which you make payment to the third party based on the extent of your activity of conveying the work, and under which the third party grants, to any of the parties who would receive the covered work from you, a discriminatory patent license (a) in connection with copies of the covered work conveyed by you (or copies made from those copies), or (b) primarily for and in connection with specific products or compilations that contain the covered work, unless you entered into that arrangement, or that patent license was granted, prior to 28 March 2007. Nothing in this License shall be construed as excluding or limiting any implied license or other defenses to infringement that may otherwise be available to you under applicable patent law. 12. No Surrender of Others' Freedom. If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License.  If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not convey it at all.  For example, if you agree to terms that obligate you to collect a royalty for further conveying from those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to refrain entirely from conveying the Program. 13. Use with the GNU Affero General Public License. Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU Affero General Public License into a single combined work, and to convey the resulting work.  The terms of this License will continue to apply to the part which is the covered work, but the special requirements of the GNU Affero General Public License, section 13, concerning interaction through a network will apply to the combination as such. 14. Revised Versions of this License. The Free Software Foundation may publish revised and/or new versions of the GNU General Public License from time to time.  Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number.  If the Program specifies that a certain numbered version of the GNU General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation.  If the Program does not specify a version number of the GNU General Public License, you may choose any version ever published by the Free Software Foundation. If the Program specifies that a proxy can decide which future versions of the GNU General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program. Later license versions may give you additional or different permissions.  However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version. 15. Disclaimer of Warranty. THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 16. Limitation of Liability. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 17. Interpretation of Sections 15 and 16. If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program.  It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. <one line to give the program's name and a brief idea of what it does.> Copyright (C) <year>  <name of author> This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program.  If not, see <http://www.gnu.org/licenses/>. Also add information on how to contact you by electronic and paper mail. If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode: <program>  Copyright (C) <year>  <name of author> This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License.  Of course, your program's commands might be different; for a GUI interface, you would use an "about box". You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see <http://www.gnu.org/licenses/>. The GNU General Public License does not permit incorporating your program into proprietary programs.  If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library.  If this is what you want to do, use the GNU Lesser General Public License instead of this License.  But first, please read <http://www.gnu.org/philosophy/why-not-lgpl.html>. </del>