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Merge pull request #29 from NixOS/add-license-attribution
meta: add licensing, attribution, and provenance documentation
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‎LICENSES/CC-BY-4.0.txt‎

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‎LICENSES/Jura-OFL-1.1.txt‎

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Copyright Cyreal (https://github.com/cyrealtype)
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This Font Software is licensed under the SIL Open Font License, Version 1.1.
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This license is copied below, and is also available with a FAQ at:
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http://scripts.sil.org/OFL
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-----------------------------------------------------------
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SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
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-----------------------------------------------------------
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PREAMBLE
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The goals of the Open Font License (OFL) are to stimulate worldwide
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development of collaborative font projects, to support the font creation
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efforts of academic and linguistic communities, and to provide a free and
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open framework in which fonts may be shared and improved in partnership
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with others.
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The OFL allows the licensed fonts to be used, studied, modified and
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redistributed freely as long as they are not sold by themselves. The
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fonts, including any derivative works, can be bundled, embedded,
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redistributed and/or sold with any software provided that any reserved
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names are not used by derivative works. The fonts and derivatives,
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however, cannot be released under any other type of license. The
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requirement for fonts to remain under this license does not apply
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to any document created using the fonts or their derivatives.
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DEFINITIONS
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"Font Software" refers to the set of files released by the Copyright
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Holder(s) under this license and clearly marked as such. This may
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include source files, build scripts and documentation.
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"Reserved Font Name" refers to any names specified as such after the
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copyright statement(s).
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"Original Version" refers to the collection of Font Software components as
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distributed by the Copyright Holder(s).
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"Modified Version" refers to any derivative made by adding to, deleting,
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or substituting -- in part or in whole -- any of the components of the
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Original Version, by changing formats or by porting the Font Software to a
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new environment.
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"Author" refers to any designer, engineer, programmer, technical
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writer or other person who contributed to the Font Software.
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PERMISSION & CONDITIONS
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of the Font Software, to use, study, copy, merge, embed, modify,
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redistribute, and sell modified and unmodified copies of the Font
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Software, subject to the following conditions:
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1) Neither the Font Software nor any of its individual components,
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in Original or Modified Versions, may be sold by itself.
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2) Original or Modified Versions of the Font Software may be bundled,
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redistributed and/or sold with any software, provided that each copy
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contains the above copyright notice and this license. These can be
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included either as stand-alone text files, human-readable headers or
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in the appropriate machine-readable metadata fields within text or
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binary files as long as those fields can be easily viewed by the user.
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3) No Modified Version of the Font Software may use the Reserved Font
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Name(s) unless explicit written permission is granted by the corresponding
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Copyright Holder. This restriction only applies to the primary font name as
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presented to the users.
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4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
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Software shall not be used to promote, endorse or advertise any
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Modified Version, except to acknowledge the contribution(s) of the
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Copyright Holder(s) and the Author(s) or with their explicit written
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permission.
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5) The Font Software, modified or unmodified, in part or in whole,
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must be distributed entirely under this license, and must not be
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distributed under any other license. The requirement for fonts to
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remain under this license does not apply to any document created
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using the Font Software.
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TERMINATION
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This license becomes null and void if any of the above conditions are
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not met.
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DISCLAIMER
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THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
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OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
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COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
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DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
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OTHER DEALINGS IN THE FONT SOFTWARE.

‎LICENSES/MIT.txt‎

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Valid-License-Identifier: MIT
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License-Text:
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MIT License
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Copyright (c) 2019 The nixos-homepage contributors
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.

‎LICENSES/Route159-OFL-1.1.txt‎

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Copyright (c) 2015, Sora Sagano ([email protected])
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This Font Software is licensed under the SIL Open Font License, Version 1.1.
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This license is copied below, and is also available with a FAQ at:
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http://scripts.sil.org/OFL
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-----------------------------------------------------------
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SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
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-----------------------------------------------------------
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PREAMBLE
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The goals of the Open Font License (OFL) are to stimulate worldwide
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development of collaborative font projects, to support the font creation
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efforts of academic and linguistic communities, and to provide a free and
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open framework in which fonts may be shared and improved in partnership
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with others.
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The OFL allows the licensed fonts to be used, studied, modified and
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redistributed freely as long as they are not sold by themselves. The
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fonts, including any derivative works, can be bundled, embedded,
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redistributed and/or sold with any software provided that any reserved
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names are not used by derivative works. The fonts and derivatives,
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however, cannot be released under any other type of license. The
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requirement for fonts to remain under this license does not apply
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to any document created using the fonts or their derivatives.
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DEFINITIONS
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"Font Software" refers to the set of files released by the Copyright
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Holder(s) under this license and clearly marked as such. This may
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include source files, build scripts and documentation.
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"Reserved Font Name" refers to any names specified as such after the
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copyright statement(s).
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"Original Version" refers to the collection of Font Software components as
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distributed by the Copyright Holder(s).
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"Modified Version" refers to any derivative made by adding to, deleting,
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or substituting -- in part or in whole -- any of the components of the
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Original Version, by changing formats or by porting the Font Software to a
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new environment.
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"Author" refers to any designer, engineer, programmer, technical
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writer or other person who contributed to the Font Software.
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PERMISSION & CONDITIONS
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of the Font Software, to use, study, copy, merge, embed, modify,
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redistribute, and sell modified and unmodified copies of the Font
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Software, subject to the following conditions:
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1) Neither the Font Software nor any of its individual components,
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in Original or Modified Versions, may be sold by itself.
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2) Original or Modified Versions of the Font Software may be bundled,
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redistributed and/or sold with any software, provided that each copy
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contains the above copyright notice and this license. These can be
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included either as stand-alone text files, human-readable headers or
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in the appropriate machine-readable metadata fields within text or
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binary files as long as those fields can be easily viewed by the user.
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3) No Modified Version of the Font Software may use the Reserved Font
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Name(s) unless explicit written permission is granted by the corresponding
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Copyright Holder. This restriction only applies to the primary font name as
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presented to the users.
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4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
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Software shall not be used to promote, endorse or advertise any
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Modified Version, except to acknowledge the contribution(s) of the
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Copyright Holder(s) and the Author(s) or with their explicit written
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permission.
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5) The Font Software, modified or unmodified, in part or in whole,
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must be distributed entirely under this license, and must not be
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distributed under any other license. The requirement for fonts to
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remain under this license does not apply to any document created
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using the Font Software.
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TERMINATION
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This license becomes null and void if any of the above conditions are
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not met.
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DISCLAIMER
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THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
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OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
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COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
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DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
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OTHER DEALINGS IN THE FONT SOFTWARE.

‎README.md‎

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nix run .\#nixos-branding.verification.verify-nixos-branding-all
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```
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## License and Attribution
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This repository contains both **software code** and **design assets** used for the NixOS visual identity.
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### Code
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Source code files (for example, `.py` and `.nix` files) are licensed under the **MIT License**.
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See [`LICENSES/MIT.txt`](LICENSES/MIT.txt) for full terms.
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### Design Assets
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Creative works — including the NixOS logos, logotypes, color palettes, and related design files — are licensed under the **Creative Commons Attribution 4.0 International License (CC BY 4.0)**.
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See [`LICENSES/CC-BY-4.0.txt`](LICENSES/CC-BY-4.0.txt) or <https://creativecommons.org/licenses/by/4.0/>.
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### Fonts
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- Jura font by
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Alexei Vanyashin, Daniel Johnson, Guldana Tauasar (Cyrillic), and Irene Vlachou (Greek)
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from [alexeiva/jura](https://github.com/alexeiva/jura)
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licensed under **SIL Open Font License, Version 1.1 (OFL-1.1)**.
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See [`LICENSES/Jura-OFL-1.1.txt`](LICENSES/Jura-OFL-1.1.txt) or <https://openfontlicense.org/> for full terms.
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- Route 159 font
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by Sora Sagano
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from [dotcolon](https://www.dotcolon.net/fonts/route159/)
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licensed under **SIL Open Font License, Version 1.1 (OFL-1.1)**.
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See [`LICENSES/Route159-OFL-1.1.txt`](LICENSES/Route159-OFL-1.1.txt) or <https://openfontlicense.org/> for full terms.
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### Attribution for NixOS Branding Assets
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The NixOS branding assets may be shared and adapted for any purpose, including commercial use, provided that you:
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- Give appropriate credit to the **NixOS Project** and contributors.
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- Provide a link to the license.
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- Indicate if changes were made.
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Please use the **TASL format** (Title, Author, Source, License) for attribution. For example:
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> “NixOS Logo” by [Simon Frankau](https://github.com/simon-frankau),
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> [Tim Cuthbertson](https://github.com/timbertson),
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> and [Daniel Baker](https://github.com/djacu)
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> (maintained by the [NixOS Marketing Team](https://nixos.org/community/teams/marketing/)),
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> from [nixos/branding](https://github.com/NixOS/branding),
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> licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).
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### Logo Attribution
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The NixOS logo has evolved through several community revisions:
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- **Original design** by [Simon Frankau (@simon-frankau)](https://github.com/simon-frankau)\
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[View commit → d5af1e3971822b8a3ec19689a17464558baf7244](https://github.com/NixOS/nixos-homepage/commit/d5af1e3971822b8a3ec19689a17464558baf7244)
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- **Revision** by [Tim Cuthbertson (@timbertson)](https://github.com/timbertson)\
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[View pull request → #55](https://github.com/NixOS/nixos-homepage/pull/55)
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- **Further revision** by [Daniel Baker (@djacu)](https://github.com/djacu)\
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[View pull request → #1](https://github.com/NixOS/branding/pull/1)
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All versions are licensed under the [Creative Commons Attribution 4.0 International License (CC BY 4.0)](https://creativecommons.org/licenses/by/4.0/).
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> For historical licensing correspondence, see
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> [`docs/provenance/`](docs/provenance/) for records confirming continued
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> permission to use and modify the NixOS logo under CC BY 4.0.
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## Contact
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For questions, feedback, or to request approval for brand use, reach out to the [NixOS Marketing Team](https://nixos.org/community/teams/marketing/).

‎docs/provenance/README.md‎

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# Provenance Documentation
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This directory contains correspondence and records verifying the authorship,
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permissions, and licensing history of the NixOS logo.
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Each entry documents a conversation confirming that the logo may be distributed
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and modified under the **Creative Commons Attribution 4.0 International License
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(CC BY 4.0)**.
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These records ensure the license chain for the NixOS logo remains verifiable and
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transparent across its historical revisions.
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______________________________________________________________________
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## Files
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### `nixos-logo-permission-20161002-cuthbertson.txt`
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Public mailing list discussion between **Tim Cuthbertson** and the NixOS
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community (October 2016). In this thread, Tim confirms that the NixOS logo is
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released under the **CC BY** license and may be freely used or modified,
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provided attribution is preserved and changes are noted. Original archive link:
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<https://releases.nixos.org/nix-dev/2016-October/021876.html>
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### `nixos-logo-permission-20250917-cuthbertson.txt`
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Private email correspondence between **Daniel Baker**, **Eelco Dolstra**, and
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**Tim Cuthbertson** (September 2025). Daniel requested confirmation to continue
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licensing the NixOS logo under **CC BY 4.0** for the modern branding repository.
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Eelco agreed while clarifying he was not the logo’s creator; Tim confirmed his
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consent (“Also fine with me 👍”). This exchange serves as formal acknowledgment
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of continued permission for the NixOS logo under the same license.
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### `jura-font-attribution-20251013-cyreal.txt`
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Email exchange between **Alexei Vanyashin (Cyreal)** and **Daniel Baker**
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confirming the correct authorship and license attribution for the **Jura**
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font used in NixOS branding.
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Confirms SIL Open Font License (OFL 1.1) and attribution formatting.
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______________________________________________________________________
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## Privacy Notice
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All personal email addresses have been redacted. Unredacted copies of private
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correspondence are securely retained by **Daniel Baker** for provenance
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verification.
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Publicly archived discussions (e.g., the 2016 mailing list thread) are linked
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rather than redistributed in full, though key excerpts are vendored here for
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long-term reference.
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______________________________________________________________________
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_Last updated: 2025-12-01_

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