lab.nexedi.com/kirr/go123@v0.0.0-20240207185015-8299741fa871/COPYING

Go123 is free software licensed under GPLv3+ with additional permission
to link, combine and redistribute it with other free or open source software.

Please see https://www.nexedi.com/licensing for rationale and options.

The exact licensing terms follow:

----------------------------------------
Additional permission under GNU GPL version 3 section 7 :

  If you modify this Program, or any covered work, by linking or
combining it with other software covered by the terms of any of the
licenses classified as free software license by the Free Software
Foundation

    <https://www.gnu.org/licenses/license-list.en.html>,

or any of the Open Source Initiative approved licenses

    <http://opensource.org/licenses>,

the licensors of this Program grant you additional permission to convey
the resulting work. Corresponding Source for a non-source form of such a
combination shall include the source code for all other software used as
well as that of the covered work.


----------------------------------------
                    GNU GENERAL PUBLIC LICENSE
                       Version 3, 29 June 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.

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    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>.