LICENSE.txt

GoReplay is an Open Source project licensed under the terms of
the LGPLv3 license.  Please see <http://www.gnu.org/licenses/lgpl-3.0.html>
for license text.

As a special exception to the GNU Lesser General Public License version 3
("LGPL3"), the copyright holders of this Library give you permission to
convey to a third party a Combined Work that links statically or dynamically
to this Library without providing any Minimal Corresponding Source or
Minimal Application Code as set out in 4d or providing the installation
information set out in section 4e, provided that you comply with the other
provisions of LGPL3 and provided that you meet, for the Application the
terms and conditions of the license(s) which apply to the Application.

TLDR: You are free to use Gor subpackages like `byteutils` or `proto` in your commercial projects.


GoReplay Pro has a commercial-friendly license allowing private forks
and modifications of GoReplay.  Please see https://goreplay.org/pro.html for
more detail.  You can find the commercial license terms in COMM-LICENSE.