Clarify licenses

- Fix `LICENSE.md` links
- Add MIT-0 text for NSF driver license

Author: Gumball2415

CMakeLists.txt

@@ -75,10 +75,13 @@ add_custom_command(
 # update changelog
 add_custom_command(
     OUTPUT  ${DNHELP_SRC_DIR}/changelog.htm
-    DEPENDS ${DNHELP_SRC_DIR}/changelog-shell.htm
+            ${DNHELP_SRC_DIR}/license.htm
+    DEPENDS ${DNHELP_SRC_DIR}/changelog-template.htm
+            ${DNHELP_SRC_DIR}/license-template.htm
             CHANGELOG.md
+            LICENSE.md
     WORKING_DIRECTORY ${DNHELP_SRC_DIR}
-    COMMAND call ${DNHELP_SRC_DIR}/update-changelog-htm.bat
+    COMMAND call ${DNHELP_SRC_DIR}/update-htm-templates
     COMMENT "Updating changelog.htm."
     VERBATIM)
 

Dn-help

@@ -0,0 +1,18 @@
+MIT No Attribution
+
+Copyright 2020-2026 D.P.C.M.
+
+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.
+
+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.

LICENSE-MIT-0.txt

@@ -1,12 +1,14 @@
 # Licenses
 
+---
+
 The application is distributed under the
 [GPLv3+ license](https://www.gnu.org/licenses/gpl-3.0.en.html), or any later
 version.
 
-```_
+```text
 Dn-FamiTracker - NES/Famicom sound tracker
-Copyright (C) 2020-2025 D.P.C.M.
+Copyright (C) 2020-2026 D.P.C.M.
 FamiTracker Copyright (C) 2005-2020 Jonathan Liss
 0CC-FamiTracker Copyright (C) 2014-2018 HertzDevil
 
@@ -27,7 +29,7 @@ along with this program. If not, see https://www.gnu.org/licenses/.
 ## Tracker source code and libraries
 
 The tracker source code is distributed under the
-[GPLv3+ license](https://www.gnu.org/licenses/gpl-3.0.en.html), or any later
+[GPLv3+ license](https://www.gnu.org/licenses/gpl-3.0.html), or any later
 version.
 
 - FamiTracker
@@ -40,50 +42,36 @@ version.
 	- Licensed under
 	  [GPLv2](https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html), or any
 	  later version.
-	- Copyright (C) 2006 Brezza, 2012-2025 Brad Smith
-	- Used under an [informal license](Source/APU/nsfplay/readme.txt).
-- VRC7/OPLL sound emulator from emu2413 v1.5.9
-	- Copyright (C) 2001-2019 Mitsutaka Okazaki
+- NSFPlay
+	- Copyright (C) 2006 Brezza, 2012-2026 Brad Smith
+	- Used under an [informal license](https://github.com/bbbradsmith/nsfplay/blob/master/readme.txt).
+- VRC7/OPLL sound emulator from [emu2413](https://github.com/digital-sound-antiques/emu2413) v1.5.9
+	- Copyright (C) 2001-2022 Mitsutaka Okazaki
 	- Licensed under the [MIT license](https://mit-license.org/).
-- FDS and N163 sound emulator from Mesen
-	- Copyright (C) 2014-2024 Sour
+- FDS and N163 sound emulator from [Mesen](https://github.com/SourMesen/Mesen2)
+	- Copyright (C) 2014-2025 Sour
 	- Licensed under
-	  [GPLv3](https://www.gnu.org/licenses/old-licenses/gpl-3.0.en.html), or any
+	  [GPLv3](https://www.gnu.org/licenses/gpl-3.0.html), or any
 	  later version.
-- Blip_buffer 0.4.1
+- [Blip_buffer](https://www.slack.net/~ant/libs/audio.html#Blip_Buffer) 0.4.1
 	- Copyright (C) 2003-2006 Shay Green
 	- Licensed under
 	  [LGPLv2.1](https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html)
 	- modified by nyanpasu64
-- Free FFT and convolution (C++)
+- [Free FFT and convolution](https://www.nayuki.io/page/free-small-fft-in-multiple-languages) (C++)
 	- Copyright (C) 2017 Project Nayuki
 	- Licensed under the
 	  [MIT license](https://mit-license.org/).
-- JSON for Modern C++
+- [JSON for Modern C++](https://github.com/nlohmann/json/)
 	- Copyright (C) 2013-2024 Niels Lohmann <https://nlohmann.me>
 	- Licensed under the [MIT license](https://mit-license.org/).
-- libsamplerate
+- [libsamplerate](https://github.com/libsndfile/libsamplerate)
 	- Copyright (C) 2012-2016, Erik de Castro Lopo <[email protected]>.
 	  All rights reserved.
 	- Licensed under the
 	  [BSD-2-Clause license](https://www.freebsd.org/copyright/freebsd-license/).
 
-## NSFs, Exported music, modules, etc.
-
-The licenses mentioned for the NSF driver and the tracker source do not apply to
-exported media made with the program that does not contain executable code that
-resembles any source file, such as exported `.wav`s, `.txt`s, `.json`s, or `.csv`s.
-
-[jsr's comment on music created with FT.](http://forums.famitracker.com/viewtopic.php?f=4&t=122&p=741#p741)
-
-However, NSFs/ROMs contain machine code that more or less corresponds to the NSF
-driver source, and thus the software licenses may apply. More details can be
-found [in the NSF source's license](./Source/drivers/asm/LICENSE.md).
-
-This does not apply to exported assembly or binary music data, as they do not
-include the NSF driver data.
-
 ## NSF driver source code
 
-Dn-FT NSF driver changes are under GPL v2 due to 0CC-FT. More details can be
-found [in the NSF source's license](./Source/drivers/asm/LICENSE.md).
+Dn-FT NSF driver modifications are under [MIT-0](LICENSE-MIT-0.txt). More details can be found
+[in the NSF driver source's license](https://github.com/Dn-Programming-Core-Management/Dn-FamiTracker/blob/main/Source/drivers/asm/LICENSE.md).

LICENSE.md

@@ -1,21 +1,30 @@
+```text
+Dn-FamiTracker NSF Driver Copyright (C) 2020-2026 D.P.C.M.
+0CC-FamiTracker NSF Driver Copyright (C) 2014-2018 HertzDevil
+FamiTracker NSF music driver Copyright (C) 2005-2015 Jonathan Liss
+```
+
 The original FT NSF driver's source code is explicitly *not* under the
 GPL.[^1][^2][^3]
 
 It is instead source-available, under no explicit license. Based on its usecase,
-and jsr's comments [^4], I presume that distribution and modification is
+and jsr's comments [^4], it is presumed that distribution and modification is
 permitted, and attribution is recommended.
 
 [^1]: <http://famitracker.com/forum/posts.php?id=787#5149>
 [^2]: <http://forums.famitracker.com/viewtopic.php?t=2638>
 [^3]: <http://famitracker.com/forum/posts.php?id=4337#44063>
 [^4]: <http://famitracker.com/forum/posts.php?id=4337#44083>
 
-0CC-FamiTracker's NSF driver code modifications is licensed under GPL v2,
-which may restrict anyone sharing compiled NSFs and binaries without sharing the
-assembly source, as they contain machine code that directly correlates to the
-NSF driver source.
+0CC-FamiTracker's modified NSF driver source comes with a
+[GPL v2](https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html) license
+file. Although
+[the output of the program is not covered by the GNU GPL](https://www.gnu.org/licenses/gpl-faq.en.html#WhatCaseIsOutputGPL),
+the NSF/ROM output might be considered as an executable binary, which in theory
+may restrict anyone sharing compiled NSFs and binaries without sharing the
+assembly source, according to section 3.
 
-0CC-FT NSF driver modifications are under GPL v2.
+Dn-FamiTracker's modifications are under [MIT-0](../../../LICENSE-MIT-0.txt).
 
-Dn-FT NSF driver modifications are under the same license as 0CC-FT NSF driver
-modifications.
+Dn-FamiTracker NSF driver source as a whole is effectively under the
+[GPL v2](https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html) license.