epubgrep makes direct use of the following libraries and programs:

  C++ and the C++ standard library
    From: The C++ committee and community, implemented by various projects.
          https://isocpp.org/

  CMake
    From: Kitware and community
          https://cmake.org/
    License: Custom license
             https://github.com/Kitware/CMake/blob/master/Copyright.txt

  Catch
    From: Martin Hořeňovský and community
          https://github.com/catchorg/Catch2
    License: BSL-1.0

  Boost
    From: Boost organization and community
          https://www.boost.org/
    License: BSL-1.0

  gettext
    From: GNU and community
          https://www.gnu.org/software/gettext/
    License: GPL-3.0-or-later, LGPL-2.1-or-later

  libarchive
    From: libarchive community
          https://www.libarchive.org/
    License: BSD-3-Clause, BSD-2-Clause, BSD-4-Clause, public-domain

  fmt
    From: fmt community
          https://github.com/fmtlib/fmt
    License: MIT

  Termcolor
    From: Ihor Kalnytskyi
          https://termcolor.readthedocs.io/
    License: BSD-3-Clause