MontaukOS - Third-Party Notices
===============================

MontaukOS is proprietary software governed by the MontaukOS Software License
Agreement (see license.txt). It incorporates or is distributed together with the
third-party components listed below, each of which remains the property of its
respective owner and is provided under its own license. The notices and license
texts in this file apply only to the corresponding third-party component and not
to MontaukOS as a whole.

This file is provided to satisfy the attribution and redistribution conditions of
those licenses. Where a component permits a choice of license, MontaukOS relies on
the option reproduced here.


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1. Limine (bootloader)
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Shipped as binary firmware payloads in the bootable image (e.g. BOOTX64.EFI,
BOOTAA64.EFI, BOOTIA32.EFI, BOOTRISCV64.EFI, BOOTLOONGARCH64.EFI,
limine-bios-cd.bin, limine-bios.sys, limine-uefi-cd.bin, and related files).

License: BSD 2-Clause "Simplified" License

  Copyright (C) 2019-2025 Mintsuki and contributors.

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are met:

  1. Redistributions of source code must retain the above copyright notice, this
     list of conditions and the following disclaimer.

  2. Redistributions in binary form must reproduce the above copyright notice,
     this list of conditions and the following disclaimer in the documentation
     and/or other materials provided with the distribution.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Note: The build system also derives in part from the Limine C++ template, which
is released by Mintsuki and contributors under the Zero-Clause BSD (0BSD) license.
0BSD imposes no attribution or redistribution conditions; this acknowledgement is
provided as a courtesy only.


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2. BearSSL (TLS / cryptography)
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Linked into MontaukOS userspace networking components.

License: MIT License

  Copyright (c) 2016 Thomas Pornin <pornin@bolet.org>

  Permission is hereby granted, free of charge, to any person obtaining
  a copy of this software and associated documentation files (the
  "Software"), to deal in the Software without restriction, including
  without limitation the rights to use, copy, modify, merge, publish,
  distribute, sublicense, and/or sell copies of the Software, and to
  permit persons to whom the Software is furnished to do so, subject to
  the following conditions:

  The above copyright notice and this permission notice shall be
  included in all copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  SOFTWARE.


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3. stb_image (JPEG image decoding)
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Used as the single-header image decoder behind MontaukOS image/JPEG support
(programs/include/gui/stb_image.h). This is the "libjpeg" component referenced in
the build; it is in fact stb_image by Sean Barrett.

stb_image is dual-licensed (MIT OR public domain). MontaukOS relies on the MIT
option, reproduced here:

License: MIT License

  Copyright (c) 2017 Sean Barrett

  Permission is hereby granted, free of charge, to any person obtaining a copy of
  this software and associated documentation files (the "Software"), to deal in
  the Software without restriction, including without limitation the rights to
  use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
  of the Software, and to permit persons to whom the Software is furnished to do
  so, subject to the following conditions:

  The above copyright notice and this permission notice shall be included in all
  copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


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4. DOOM engine (via doomgeneric)
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Shipped as the bundled "doom" application (doom.elf), built from the doomgeneric
port of id Software's DOOM source release.

License: GNU General Public License, version 2 (GPLv2)

  DOOM source code is Copyright (C) 1993-1996 id Software, Inc., is Copyright (C)
  2005-2014 Simon Howard (Chocolate Doom lineage), and is licensed under the GNU
  General Public License version 2. doomgeneric is Copyright (C) its respective
  authors and contributors, likewise under GPLv2.

  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 2 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.

  IMPORTANT: The DOOM application (doom.elf) is licensed under GPLv2, separately
  from MontaukOS itself. The MontaukOS Software License Agreement does NOT apply
  to doom.elf or to the doomgeneric/DOOM source. The full GPLv2 license text is
  distributed with the corresponding source.

  WRITTEN OFFER FOR SOURCE: The complete corresponding source code for the DOOM
  application, under the terms of GPLv2, is available on request and is provided
  alongside MontaukOS distributions. Contact: daniel@nexlink.cloud.

  DOOM GAME DATA (doom1.wad): This notice and the GPLv2 license cover only the
  DOOM engine code, NOT the DOOM game data. MontaukOS bundles "doom1.wad", the
  DOOM shareware episode (Knee-Deep in the Dead), which is Copyright (C) id
  Software, Inc. The shareware WAD is NOT covered by the GPL and is NOT public
  domain. id Software's shareware terms permit free, non-commercial redistribution
  of the unmodified shareware WAD, but do not grant rights for commercial
  distribution or modification. If MontaukOS is ever distributed commercially, the
  shareware WAD should be removed and replaced with a freely licensed alternative
  (e.g. the Freedoom project's freedoom1.wad / freedoom2.wad, released under a
  BSD-style license), or distributed only with id Software's permission. The
  registered/commercial DOOM WADs (e.g. doom.wad, doom2.wad) are separate
  copyrighted assets and are NOT distributed with MontaukOS.


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For licensing inquiries regarding MontaukOS itself, contact: daniel@nexlink.cloud
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