Open-source licenses

Nodl is built with open-source software. We are grateful to the maintainers and contributors of the projects below. This page reproduces the copyright notices and license texts whose licenses require us to do so.

Listed here are the third-party components distributed as part of Nodl, such as libraries, fonts, icons, and styles, grouped by license. Operating-system components and development-only tooling are out of scope. A complete inventory is maintained by the Nodl team in the project documentation.

MIT License

Components

  • @tailwindcss/typography 0.5 Copyright (c) Tailwind Labs, Inc.
  • action_text-trix 2.1.19 Copyright (c) 37signals, LLC
  • actioncable 8.1.3.1 Copyright (c) 37signals LLC
  • actionmailbox 8.1.3.1 Copyright (c) 37signals LLC
  • actionmailer 8.1.3.1 Copyright (c) David Heinemeier Hansson
  • actionpack 8.1.3.1 Copyright (c) David Heinemeier Hansson
  • actiontext 8.1.3.1 Copyright (c) 37signals LLC
  • actionview 8.1.3.1 Copyright (c) David Heinemeier Hansson
  • active_storage_encryption 0.3.0 Copyright Cheddar Payments BV, Julik Tarkhanov, Sebastian van Hesteren
  • activejob 8.1.3.1 Copyright (c) David Heinemeier Hansson
  • activemodel 8.1.3.1 Copyright (c) David Heinemeier Hansson
  • activerecord 8.1.3.1 Copyright (c) David Heinemeier Hansson
  • activestorage 8.1.3.1 Copyright (c) David Heinemeier Hansson, 37signals LLC
  • activesupport 8.1.3.1 Copyright (c) David Heinemeier Hansson
  • afm 1.0.0 Copyright (c) Jan Krutisch
  • Ascii85 2.0.1 Copyright (c) 2009 Johannes Holzfuß
  • ast 2.4.3 Copyright (c) 2011-2013 Peter Zotov <[email protected]>
  • async 2.39.0 Copyright (c) Samuel Williams and contributors
  • async-http 0.95.1 Copyright (c) Samuel Williams and contributors
  • async-pool 0.11.2 Copyright (c) Samuel Williams and contributors
  • async-websocket 0.30.0 Copyright (c) Samuel Williams and contributors
  • auth-sanitizer 0.2.1 Copyright (c) Peter H. Boling
  • bcrypt 3.1.22 Copyright 2007-2011:
  • bcrypt_pbkdf 1.1.2 Copyright 2007-2016: Miklós Fazekas <[email protected]>
  • block_cipher_kit 0.0.4 Copyright (c) Julik Tarkhanov, Sebastian van Hesteren
  • bootsnap 1.24.6 Copyright (c) 2017-2025 Shopify, Inc.
  • builder 3.3.0 Copyright (c) 2003-2012 Jim Weirich ([email protected])
  • bundler 2.5.22 Copyright (c) André Arko, Samuel Giddins, Colby Swandale, Hiroshi Shibata, David Rodríguez, Grey Baker, Stephanie Morillo, Chris Morris, James Wen, Tim Moore, André Medeiros, Jessica Lynn Suttles, Terence Lee, Carl Lerche, Yehuda Katz
  • concurrent-ruby 1.3.6 Copyright (c) Jerry D'Antonio -- released under the MIT license.
  • connection_pool 3.0.2 Copyright (c) 2011 Mike Perham
  • console 1.36.0 Copyright (c) Samuel Williams and contributors
  • crass 1.0.6 Copyright (c) 2020 Ryan Grove ([email protected])
  • DaisyUI 5.0.33 Copyright (c) Pouya Saadeghi
  • docx 0.13.0 Copyright (c) Marcus Ortiz, http://marcusortiz.com
  • dotenv 3.2.0 Copyright (c) 2012 Brandon Keepers
  • ed25519 1.4.0 Copyright (c) 2012-2025 Tony Arcieri
  • erubi 1.13.1 copyright(c) 2006-2011 kuwata-lab.com all rights reserved.
  • et-orbi 1.4.0 Copyright (c) 2017-2025, John Mettraux, [email protected]
  • faraday 2.14.2 Copyright (c) 2009-2023 Rick Olson, Zack Hobson
  • faraday-net_http 3.4.4 Copyright (c) 2020 Jan van der Pas
  • fiber-annotation 0.2.0 Copyright (c) Samuel Williams and contributors
  • fiber-local 1.1.0 Copyright (c) Samuel Williams and contributors
  • fiber-storage 1.0.1 Copyright (c) Samuel Williams and contributors
  • fugit 1.12.2 Copyright (c) 2017-2026, John Mettraux, [email protected]
  • globalid 1.3.0 Copyright (c) 2014-2023 David Heinemeier Hansson
  • hashie 5.1.0 Copyright (c) 2009-2020 Intridea, Inc., and Contributors.
  • htmltoword 1.1.1 Copyright (c) Nicholas Frandsen, Cristina Matonte
  • i18n 1.14.8 Copyright (c) 2008 The Ruby I18n team
  • image_processing 1.14.0 Copyright (c) 2015 Janko Marohnić
  • importmap-rails 2.2.3 Copyright (c) 2022 Basecamp
  • io-endpoint 0.17.2 Copyright (c) Samuel Williams and contributors
  • io-event 1.16.1 Copyright (c) Samuel Williams and contributors
  • io-stream 0.13.0 Copyright (c) Samuel Williams and contributors
  • jbuilder 2.15.1 Copyright (c) 2011-2018 David Heinemeier Hansson, 37signals
  • jwt 3.2.0 Copyright (c) 2011 Jeff Lindsay
  • kamal 2.11.0 Copyright (c) 2023 David Heinemeier Hansson
  • kramdown 2.4.0 Copyright (C) 2009-2013 Thomas Leitner <[email protected]>
  • loofah 2.25.1 Copyright (c) 2009 -- 2018 by Mike Dalessio, Bryan Helmkamp
  • mail 2.9.1 Copyright (c) 2009-2016 Mikel Lindsaar
  • marcel 1.2.1 Copyright (c) 2017 Tom Ward
  • metrics 0.15.0 Copyright (c) Samuel Williams and contributors
  • mini_magick 5.3.1 Copyright (c) 2005-2013 Corey Johnson [email protected]
  • mini_mime 1.1.5 Copyright (c) 2016 Discourse Construction Kit, Inc.
  • minitest 6.0.6 Copyright (c) Ryan Davis, seattle.rb
  • multi_xml 0.9.1 Copyright (c) 2010-2025 Erik Berlin
  • net-scp 4.1.0 Copyright © 2008 Jamis Buck
  • net-sftp 4.0.0 Copyright © 2008 Jamis Buck
  • net-ssh 7.3.2 Copyright © 2008 Jamis Buck
  • nio4r 2.7.5 Copyright (c) Tony Arcieri, Samuel Williams, Olle Jonsson, Gregory Longtin, Tiago Cardoso, Joao Fernandes, Thomas Dziedzic, Boaz Segev, Logan Bowers, Pedro Paiva, Jun Aruga, Omer Katz, Upekshe Jayasekera, Tim Carey-Smith, Benoit Daloze, Sergey Avseyev, Tomoya Ishida, Usaku Nakamura, Cédric Boutillier, Daniel Berger, Dirkjan Bussink, Hiroshi Shibata, Jesús Burgos Maciá, Luis Lavena, Pavel Rosický, Sadayuki Furuhashi, Stephen von Takach, Vladimir Kochnev, Vít Ondruch, Anatol Pomozov, Bernd Ahlers, Charles Oliver Nutter, Denis Washington, Elad Eyal, Jean byroot Boussier, Jeffrey Martin, John Thornton, Jun Jiang, Lars Kanis, Marek Kowalcze, Maxime Demolin, Orien Madgwick, Pavel Lobashov, Per Lundberg, Phillip Aldridge, Ravil Bayramgalin, Shannon Skipper, Tao Luo, Thomas Kuntz, Tsimnuj Hawj, Zhang Kang
  • nokogiri 1.19.3 Copyright (c) Mike Dalessio, Aaron Patterson, and contributors
  • oauth2 2.0.22 Copyright (c) Peter Boling, Erik Michaels-Ober, Michael Bleigh
  • omniauth 2.1.4 Copyright (c) 2010-2017 Michael Bleigh and Intridea, Inc.
  • omniauth-google-oauth2 1.2.2 Copyright (c) Josh Ellithorpe, Yury Korolev
  • omniauth-oauth2 1.9.0 Copyright (C) 2014 Michael Bleigh, Erik Michaels-Ober and Intridea, Inc.
  • omniauth-rails_csrf_protection 1.0.2 Copyright (c) 2019 Cookpad Inc.
  • pdf-reader 2.15.1 Copyright (c) 2009 Peter Jones
  • prawn-html 0.7.1 Copyright (c) 2021 Mattia Roccoberton
  • prism 1.9.0 Copyright 2022-present, Shopify Inc.
  • propshaft 1.3.2 Copyright (c) 2021 Basecamp
  • protocol-hpack 1.5.1 Copyright (c) Samuel Williams and contributors
  • protocol-http 0.62.2 Copyright (c) Samuel Williams and contributors
  • protocol-http1 0.39.0 Copyright (c) Samuel Williams and contributors
  • protocol-http2 0.26.0 Copyright (c) Samuel Williams and contributors
  • protocol-rack 0.22.1 Copyright (c) Samuel Williams and contributors
  • protocol-url 0.4.0 Copyright (c) Samuel Williams and contributors
  • protocol-websocket 0.21.1 Copyright (c) Samuel Williams and contributors
  • psych 5.4.0 Copyright (c) 2009 Aaron Patterson, et al.
  • raabro 1.4.0 Copyright (c) 2015-2020, John Mettraux, [email protected]
  • rack 3.2.6 Copyright (C) 2007-2021 Leah Neukirchen <http://leahneukirchen.org/infopage.html>
  • rack-attack 6.8.0 Copyright (c) 2016 Kickstarter, PBC
  • rack-protection 4.2.1 Copyright (c) https://github.com/sinatra/sinatra/graphs/contributors
  • rack-session 2.1.2 Copyright (c) Samuel Williams, Jeremy Evans, Jon Dufresne, Philip Arndt
  • rack-test 2.2.0 Copyright (c) 2008-2009 Bryan Helmkamp, Engine Yard Inc.
  • rackup 2.3.1 Copyright (c) Samuel Williams, James Tucker, Leah Neukirchen, Jeremy Evans, Joshua Peek, Megan Batty, Rafael França, Anurag Priyam, Max Cantor, Michael Fellinger, Sophie Deziel, Yoshiyuki Hirano, Aaron Patterson, Jean Boussier, Katsuhiko Yoshida, Konstantin Haase, Krzysztof Rybka, Martin Hrdlicka, Nick LaMuro, Aaron Pfeifer, Akira Matsuda, Andrew Bortz, Andrew Hoglund, Bas Vodde, Blake Mizerany, Carl Lerche, David Celis, Dillon Welch, Genki Takiuchi, Geremia Taglialatela, Hal Brodigan, Hrvoje Šimić, Igor Bochkariov, Jeremy Kemper, Joe Fiorini, John Barnette, John Sumsion, Julik Tarkhanov, Kang Sheng, Kazuya Hotta, Lenny Marks, Loren Segal, Marc-André Cournoyer, Misaki Shioi, Olle Jonsson, Peter Wilmott, Petrik de Heus, Richard Schneeman, Ryunosuke Sato, Sean McGivern, Stephen Paul Weber, Tadashi Saito, Tim Moore, Timur Batyrshin, Trevor Wennblom, Tsutomu Kuroda, Uchio Kondo, Wyatt Pan, Yehuda Katz, Zachary Scott
  • rails 8.1.3.1 Copyright (c) David Heinemeier Hansson
  • rails-dom-testing 2.3.0 Copyright (c) 2013-2015 Kasper Timm Hansen
  • rails-html-sanitizer 1.7.0 Copyright (c) 2013-2023 Rafael Mendonça França, Kasper Timm Hansen, Mike Dalessio
  • railties 8.1.3.1 Copyright (c) David Heinemeier Hansson
  • rake 13.4.2 Copyright (c) Jim Weirich
  • ruby-rc4 0.1.5 Copyright (C) 2010 Max Prokopiev, Alexandar Simic, Caige Nichols
  • ruby-vips 2.3.0 Copyright (c) 2014 John Cupitt
  • serve_byte_range 1.0.0 Copyright (c) Julik Tarkhanov, Sebastian van Hesteren
  • snaky_hash 2.0.6 Copyright (c) Peter H. Boling
  • solid_cable 3.0.12 Copyright Nick Pezza
  • solid_cache 1.0.10 Copyright (c) 37signals, LLC
  • solid_queue 1.4.0 Copyright (c) 37signals, LLC
  • sshkit 1.25.0 Copyright (c) 2008- Lee Hambley & Contributors
  • stimulus-rails 1.3.4 Copyright (c) 2021 Basecamp
  • stripe 13.5.1 Copyright (c) 2011- Stripe, Inc. (https://stripe.com)
  • strong_migrations 2.8.0 Copyright (c) 2013 Bob Remeika and David Waller, 2015-2026 Andrew Kane
  • tailwindcss-rails 4.4.0 Copyright (c) 2020 David Heinemeier Hansson
  • tailwindcss-ruby 4.2.0 Copyright (c) Adam Wathan <[email protected]>
  • thor 1.5.0 Copyright (c) 2008 Yehuda Katz, Eric Hodel, et al.
  • thruster 0.1.21 Copyright (c) 37signals, LLC
  • traces 0.18.2 Copyright (c) Samuel Williams and contributors
  • turbo-rails 2.0.23 Copyright (c) 2020 Basecamp
  • tzinfo 2.0.6 Copyright (c) 2005-2023 Philip Ross
  • useragent 0.16.11 Copyright (c) 2015 Garry Shutler
  • version_gem 1.1.11 Copyright (c) Peter H. Boling, Aboling0
  • web-push 3.1.0 Copyright (c) 2016 Hiroyuki Sakuraba
  • zeitwerk 2.8.2 Copyright (c) 2019–ω Xavier Noria

License text

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.

BSD 2-Clause License

Components

  • ansi 1.6.0 Copyright (c) Rubyworks
  • hashery 2.1.2 Copyright (c) Rubyworks
  • pg 1.6.3 Copyright (c) Michael Granger, Lars Kanis
  • rexml 3.4.4 Copyright (C) 1993-2013 Yukihiro Matsumoto. All rights reserved.
  • rubyzip 3.3.1 Copyright (c) 2002-2026, The Rubyzip Developers

License text

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.

BSD 3-Clause License

Components

  • ffi 1.17.3 Copyright (c) 2008-2016, Ruby FFI project contributors
  • google-protobuf 4.35.0 Copyright (c) 2008 Google Inc.
  • puma 8.0.2 Copyright (c) 2019, Evan Phoenix. Some code by Zed Shaw, (c) 2005.

License text

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.

3. Neither the name of the copyright holder nor the names of its contributors
   may be used to endorse or promote products derived from this software
   without specific prior written permission.

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.

ISC License

Components

License text

Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.

Apache License 2.0

Components

License text

                                 Apache License
                           Version 2.0, January 2004
                        http://www.apache.org/licenses/

   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

   1. Definitions.

      "License" shall mean the terms and conditions for use, reproduction,
      and distribution as defined by Sections 1 through 9 of this document.

      "Licensor" shall mean the copyright owner or entity authorized by
      the copyright owner that is granting the License.

      "Legal Entity" shall mean the union of the acting entity and all
      other entities that control, are controlled by, or are under common
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      direction or management of such entity, whether by contract or
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      "Work" shall mean the work of authorship, whether in Source or
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      any Contribution intentionally submitted for inclusion in the Work
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   9. Accepting Warranty or Additional Liability. While redistributing
      the Work or Derivative Works thereof, You may choose to offer,
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   END OF TERMS AND CONDITIONS

   APPENDIX: How to apply the Apache License to your work.

      To apply the Apache License to your work, attach the following
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   Copyright The OpenTelemetry Authors

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.

Mozilla Public License 2.0

Components

  • oga 3.4 Copyright (c) Yorick Peterse
  • ruby-ll 2.1.4 Copyright (c) Yorick Peterse

License text

Mozilla Public License, version 2.0

1. Definitions

1.1. "Contributor"

     means each individual or legal entity that creates, contributes to the
     creation of, or owns Covered Software.

1.2. "Contributor Version"

     means the combination of the Contributions of others (if any) used by a
     Contributor and that particular Contributor's Contribution.

1.3. "Contribution"

     means Covered Software of a particular Contributor.

1.4. "Covered Software"

     means Source Code Form to which the initial Contributor has attached the
     notice in Exhibit A, the Executable Form of such Source Code Form, and
     Modifications of such Source Code Form, in each case including portions
     thereof.

1.5. "Incompatible With Secondary Licenses"
     means

     a. that the initial Contributor has attached the notice described in
        Exhibit B to the Covered Software; or

     b. that the Covered Software was made available under the terms of
        version 1.1 or earlier of the License, but not also under the terms of
        a Secondary License.

1.6. "Executable Form"

     means any form of the work other than Source Code Form.

1.7. "Larger Work"

     means a work that combines Covered Software with other material, in a
     separate file or files, that is not Covered Software.

1.8. "License"

     means this document.

1.9. "Licensable"

     means having the right to grant, to the maximum extent possible, whether
     at the time of the initial grant or subsequently, any and all of the
     rights conveyed by this License.

1.10. "Modifications"

     means any of the following:

     a. any file in Source Code Form that results from an addition to,
        deletion from, or modification of the contents of Covered Software; or

     b. any new file in Source Code Form that contains any Covered Software.

1.11. "Patent Claims" of a Contributor

      means any patent claim(s), including without limitation, method,
      process, and apparatus claims, in any patent Licensable by such
      Contributor that would be infringed, but for the grant of the License,
      by the making, using, selling, offering for sale, having made, import,
      or transfer of either its Contributions or its Contributor Version.

1.12. "Secondary License"

      means either the GNU General Public License, Version 2.0, the GNU Lesser
      General Public License, Version 2.1, the GNU Affero General Public
      License, Version 3.0, or any later versions of those licenses.

1.13. "Source Code Form"

      means the form of the work preferred for making modifications.

1.14. "You" (or "Your")

      means an individual or a legal entity exercising rights under this
      License. For legal entities, "You" includes any entity that controls, is
      controlled by, or is under common control with You. For purposes of this
      definition, "control" means (a) the power, direct or indirect, to cause
      the direction or management of such entity, whether by contract or
      otherwise, or (b) ownership of more than fifty percent (50%) of the
      outstanding shares or beneficial ownership of such entity.


2. License Grants and Conditions

2.1. Grants

     Each Contributor hereby grants You a world-wide, royalty-free,
     non-exclusive license:

     a. under intellectual property rights (other than patent or trademark)
        Licensable by such Contributor to use, reproduce, make available,
        modify, display, perform, distribute, and otherwise exploit its
        Contributions, either on an unmodified basis, with Modifications, or
        as part of a Larger Work; and

     b. under Patent Claims of such Contributor to make, use, sell, offer for
        sale, have made, import, and otherwise transfer either its
        Contributions or its Contributor Version.

2.2. Effective Date

     The licenses granted in Section 2.1 with respect to any Contribution
     become effective for each Contribution on the date the Contributor first
     distributes such Contribution.

2.3. Limitations on Grant Scope

     The licenses granted in this Section 2 are the only rights granted under
     this License. No additional rights or licenses will be implied from the
     distribution or licensing of Covered Software under this License.
     Notwithstanding Section 2.1(b) above, no patent license is granted by a
     Contributor:

     a. for any code that a Contributor has removed from Covered Software; or

     b. for infringements caused by: (i) Your and any other third party's
        modifications of Covered Software, or (ii) the combination of its
        Contributions with other software (except as part of its Contributor
        Version); or

     c. under Patent Claims infringed by Covered Software in the absence of
        its Contributions.

     This License does not grant any rights in the trademarks, service marks,
     or logos of any Contributor (except as may be necessary to comply with
     the notice requirements in Section 3.4).

2.4. Subsequent Licenses

     No Contributor makes additional grants as a result of Your choice to
     distribute the Covered Software under a subsequent version of this
     License (see Section 10.2) or under the terms of a Secondary License (if
     permitted under the terms of Section 3.3).

2.5. Representation

     Each Contributor represents that the Contributor believes its
     Contributions are its original creation(s) or it has sufficient rights to
     grant the rights to its Contributions conveyed by this License.

2.6. Fair Use

     This License is not intended to limit any rights You have under
     applicable copyright doctrines of fair use, fair dealing, or other
     equivalents.

2.7. Conditions

     Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in
     Section 2.1.


3. Responsibilities

3.1. Distribution of Source Form

     All distribution of Covered Software in Source Code Form, including any
     Modifications that You create or to which You contribute, must be under
     the terms of this License. You must inform recipients that the Source
     Code Form of the Covered Software is governed by the terms of this
     License, and how they can obtain a copy of this License. You may not
     attempt to alter or restrict the recipients' rights in the Source Code
     Form.

3.2. Distribution of Executable Form

     If You distribute Covered Software in Executable Form then:

     a. such Covered Software must also be made available in Source Code Form,
        as described in Section 3.1, and You must inform recipients of the
        Executable Form how they can obtain a copy of such Source Code Form by
        reasonable means in a timely manner, at a charge no more than the cost
        of distribution to the recipient; and

     b. You may distribute such Executable Form under the terms of this
        License, or sublicense it under different terms, provided that the
        license for the Executable Form does not attempt to limit or alter the
        recipients' rights in the Source Code Form under this License.

3.3. Distribution of a Larger Work

     You may create and distribute a Larger Work under terms of Your choice,
     provided that You also comply with the requirements of this License for
     the Covered Software. If the Larger Work is a combination of Covered
     Software with a work governed by one or more Secondary Licenses, and the
     Covered Software is not Incompatible With Secondary Licenses, this
     License permits You to additionally distribute such Covered Software
     under the terms of such Secondary License(s), so that the recipient of
     the Larger Work may, at their option, further distribute the Covered
     Software under the terms of either this License or such Secondary
     License(s).

3.4. Notices

     You may not remove or alter the substance of any license notices
     (including copyright notices, patent notices, disclaimers of warranty, or
     limitations of liability) contained within the Source Code Form of the
     Covered Software, except that You may alter any license notices to the
     extent required to remedy known factual inaccuracies.

3.5. Application of Additional Terms

     You may choose to offer, and to charge a fee for, warranty, support,
     indemnity or liability obligations to one or more recipients of Covered
     Software. However, You may do so only on Your own behalf, and not on
     behalf of any Contributor. You must make it absolutely clear that any
     such warranty, support, indemnity, or liability obligation is offered by
     You alone, and You hereby agree to indemnify every Contributor for any
     liability incurred by such Contributor as a result of warranty, support,
     indemnity or liability terms You offer. You may include additional
     disclaimers of warranty and limitations of liability specific to any
     jurisdiction.

4. Inability to Comply Due to Statute or Regulation

   If it is impossible for You to comply with any of the terms of this License
   with respect to some or all of the Covered Software due to statute,
   judicial order, or regulation then You must: (a) comply with the terms of
   this License to the maximum extent possible; and (b) describe the
   limitations and the code they affect. Such description must be placed in a
   text file included with all distributions of the Covered Software under
   this License. Except to the extent prohibited by statute or regulation,
   such description must be sufficiently detailed for a recipient of ordinary
   skill to be able to understand it.

5. Termination

5.1. The rights granted under this License will terminate automatically if You
     fail to comply with any of its terms. However, if You become compliant,
     then the rights granted under this License from a particular Contributor
     are reinstated (a) provisionally, unless and until such Contributor
     explicitly and finally terminates Your grants, and (b) on an ongoing
     basis, if such Contributor fails to notify You of the non-compliance by
     some reasonable means prior to 60 days after You have come back into
     compliance. Moreover, Your grants from a particular Contributor are
     reinstated on an ongoing basis if such Contributor notifies You of the
     non-compliance by some reasonable means, this is the first time You have
     received notice of non-compliance with this License from such
     Contributor, and You become compliant prior to 30 days after Your receipt
     of the notice.

5.2. If You initiate litigation against any entity by asserting a patent
     infringement claim (excluding declaratory judgment actions,
     counter-claims, and cross-claims) alleging that a Contributor Version
     directly or indirectly infringes any patent, then the rights granted to
     You by any and all Contributors for the Covered Software under Section
     2.1 of this License shall terminate.

5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user
     license agreements (excluding distributors and resellers) which have been
     validly granted by You or Your distributors under this License prior to
     termination shall survive termination.

6. Disclaimer of Warranty

   Covered Software is provided under this License on an "as is" basis,
   without warranty of any kind, either expressed, implied, or statutory,
   including, without limitation, warranties that the Covered Software is free
   of defects, merchantable, fit for a particular purpose or non-infringing.
   The entire risk as to the quality and performance of the Covered Software
   is with You. Should any Covered Software prove defective in any respect,
   You (not any Contributor) assume the cost of any necessary servicing,
   repair, or correction. This disclaimer of warranty constitutes an essential
   part of this License. No use of  any Covered Software is authorized under
   this License except under this disclaimer.

7. Limitation of Liability

   Under no circumstances and under no legal theory, whether tort (including
   negligence), contract, or otherwise, shall any Contributor, or anyone who
   distributes Covered Software as permitted above, be liable to You for any
   direct, indirect, special, incidental, or consequential damages of any
   character including, without limitation, damages for lost profits, loss of
   goodwill, work stoppage, computer failure or malfunction, or any and all
   other commercial damages or losses, even if such party shall have been
   informed of the possibility of such damages. This limitation of liability
   shall not apply to liability for death or personal injury resulting from
   such party's negligence to the extent applicable law prohibits such
   limitation. Some jurisdictions do not allow the exclusion or limitation of
   incidental or consequential damages, so this exclusion and limitation may
   not apply to You.

8. Litigation

   Any litigation relating to this License may be brought only in the courts
   of a jurisdiction where the defendant maintains its principal place of
   business and such litigation shall be governed by laws of that
   jurisdiction, without reference to its conflict-of-law provisions. Nothing
   in this Section shall prevent a party's ability to bring cross-claims or
   counter-claims.

9. Miscellaneous

   This License represents the complete agreement concerning the subject
   matter hereof. If any provision of this License is held to be
   unenforceable, such provision shall be reformed only to the extent
   necessary to make it enforceable. Any law or regulation which provides that
   the language of a contract shall be construed against the drafter shall not
   be used to construe this License against a Contributor.


10. Versions of the License

10.1. New Versions

      Mozilla Foundation is the license steward. Except as provided in Section
      10.3, no one other than the license steward has the right to modify or
      publish new versions of this License. Each version will be given a
      distinguishing version number.

10.2. Effect of New Versions

      You may distribute the Covered Software under the terms of the version
      of the License under which You originally received the Covered Software,
      or under the terms of any subsequent version published by the license
      steward.

10.3. Modified Versions

      If you create software not governed by this License, and you want to
      create a new license for such software, you may create and use a
      modified version of this License if you rename the license and remove
      any references to the name of the license steward (except to note that
      such modified license differs from this License).

10.4. Distributing Source Code Form that is Incompatible With Secondary
      Licenses If You choose to distribute Source Code Form that is
      Incompatible With Secondary Licenses under the terms of this version of
      the License, the notice described in Exhibit B of this License must be
      attached.

Exhibit A - Source Code Form License Notice

      This Source Code Form is subject to the
      terms of the Mozilla Public License, v.
      2.0. If a copy of the MPL was not
      distributed with this file, You can
      obtain one at
      http://mozilla.org/MPL/2.0/.

If it is not possible or desirable to put the notice in a particular file,
then You may include the notice in a location (such as a LICENSE file in a
relevant directory) where a recipient would be likely to look for such a
notice.

You may add additional accurate notices of copyright ownership.

Exhibit B - "Incompatible With Secondary Licenses" Notice

      This Source Code Form is "Incompatible
      With Secondary Licenses", as defined by
      the Mozilla Public License, v. 2.0.

Ruby License

Components

  • base64 0.3.0 Copyright (c) Yusuke Endoh
  • bigdecimal 3.3.1 Copyright (c) Kenta Murata, Zachary Scott, Shigeo Kobayashi
  • date 3.5.1 Copyright (c) Tadayoshi Funaba
  • drb 2.2.3 Copyright (C) 1993-2013 Yukihiro Matsumoto. All rights reserved.
  • erb 6.0.4 Copyright (c) Masatoshi SEKI, Takashi Kokubun
  • io-console 0.8.2 Copyright (c) Nobu Nakada
  • irb 1.18.0 Copyright (C) 1993-2013 Yukihiro Matsumoto. All rights reserved.
  • json 2.19.8 Copyright (c) Florian Frank
  • logger 1.7.0 Copyright (c) Naotoshi Seo, SHIBATA Hiroshi
  • matrix 0.4.3 Copyright (c) Marc-Andre Lafortune
  • net-http 0.9.1 Copyright (c) NARUSE, Yui
  • net-imap 0.6.4.1 Copyright (c) Yukihiro Matsumoto and contributors
  • net-pop 0.1.2 Copyright (C) 1993-2013 Yukihiro Matsumoto. All rights reserved.
  • net-protocol 0.2.2 Copyright (C) 1993-2013 Yukihiro Matsumoto. All rights reserved.
  • net-smtp 0.5.1 Copyright (c) Yukihiro Matsumoto
  • openssl 4.0.2 Copyright (c) Martin Bosslet, SHIBATA Hiroshi, Zachary Scott, Kazuki Yamaguchi
  • ostruct 0.6.3 Copyright (c) Marc-Andre Lafortune
  • pp 0.6.3 Copyright (c) Tanaka Akira
  • prettyprint 0.2.0 Copyright (C) 1993-2013 Yukihiro Matsumoto. All rights reserved.
  • racc 1.8.1 Copyright (c) Minero Aoki, Aaron Patterson
  • rdoc 7.2.0 Copyright (c) Eric Hodel, Dave Thomas, Phil Hagelberg, Tony Strauss, Zachary Scott, Hiroshi SHIBATA, ITOYANAGI Sakura
  • reline 0.6.3 Copyright (c) aycabta
  • securerandom 0.4.1 Copyright (c) Tanaka Akira
  • stringio 3.2.0 Copyright (C) 1993-2013 Yukihiro Matsumoto. All rights reserved.
  • timeout 0.6.1 Copyright (c) Yukihiro Matsumoto
  • tsort 0.2.0 Copyright (C) 1993-2013 Yukihiro Matsumoto. All rights reserved.
  • uri 1.1.1 Copyright (c) Akira Yamada

License text

The following components are released under the Ruby License. Most are part of
the Ruby standard library and are dual-licensed under the Ruby License or the
2-clause BSD License (BSD-2-Clause, reproduced separately above).

Ruby is copyrighted free software by Yukihiro Matsumoto <[email protected]>.
You can redistribute it and/or modify it under either the terms of the
2-clause BSDL (see the file BSDL), or the conditions below:

1. You may make and give away verbatim copies of the source form of the
   software without restriction, provided that you duplicate all of the
   original copyright notices and associated disclaimers.

2. You may modify your copy of the software in any way, provided that
   you do at least ONE of the following:

   a. place your modifications in the Public Domain or otherwise
      make them Freely Available, such as by posting said
      modifications to Usenet or an equivalent medium, or by allowing
      the author to include your modifications in the software.

   b. use the modified software only within your corporation or
      organization.

   c. give non-standard binaries non-standard names, with
      instructions on where to get the original software distribution.

   d. make other distribution arrangements with the author.

3. You may distribute the software in object code or binary form,
   provided that you do at least ONE of the following:

   a. distribute the binaries and library files of the software,
      together with instructions (in the manual page or equivalent)
      on where to get the original distribution.

   b. accompany the distribution with the machine-readable source of
      the software.

   c. give non-standard binaries non-standard names, with
      instructions on where to get the original software distribution.

   d. make other distribution arrangements with the author.

4. You may modify and include the part of the software into any other
   software (possibly commercial).  But some files in the distribution
   are not written by the author, so that they are not under these terms.

   For the list of those files and their copying conditions, see the
   file LEGAL.

5. The scripts and library files supplied as input to or produced as
   output from the software do not automatically fall under the
   copyright of the software, but belong to whomever generated them,
   and may be sold commercially, and may be aggregated with this
   software.

6. THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
   IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   PURPOSE.

SIL Open Font License 1.1

Components

License text

Copyright (c) 2016 The Inter Project Authors (https://github.com/rsms/inter)

This Font Software is licensed under the SIL Open Font License, Version 1.1.
This license is copied below, and is also available with a FAQ at:
https://openfontlicense.org

The font file bundled with this project (inter-latin-400-700.woff2) is a subset
of the Inter typeface and is distributed under the terms below.

-----------------------------------------------------------
SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
-----------------------------------------------------------

PREAMBLE
The goals of the Open Font License (OFL) are to stimulate worldwide
development of collaborative font projects, to support the font creation
efforts of academic and linguistic communities, and to provide a free and
open framework in which fonts may be shared and improved in partnership
with others.

The OFL allows the licensed fonts to be used, studied, modified and
redistributed freely as long as they are not sold by themselves. The
fonts, including any derivative works, can be bundled, embedded,
redistributed and/or sold with any software provided that any reserved
names are not used by derivative works. The fonts and derivatives,
however, cannot be released under any other type of license. The
requirement for fonts to remain under this license does not apply to any
document created using the fonts or their derivatives.

DEFINITIONS
"Font Software" refers to the set of files released by the Copyright
Holder(s) under this license and clearly marked as such. This may
include source files, build scripts and documentation.

"Reserved Font Name" refers to any names specified as such after the
copyright statement(s).

"Original Version" refers to the collection of Font Software components as
distributed by the Copyright Holder(s).

"Modified Version" refers to any derivative made by adding to, deleting,
or substituting -- in part or in whole -- any of the components of the
Original Version, by changing formats or by porting the Font Software to a
new environment.

"Author" refers to any designer, engineer, programmer, technical
writer or other person who contributed to the Font Software.

PERMISSION & CONDITIONS
Permission is hereby granted, free of charge, to any person obtaining
a copy of the Font Software, to use, study, copy, merge, embed, modify,
redistribute, and sell modified and unmodified copies of the Font
Software, subject to the following conditions:

1) Neither the Font Software nor any of its individual components,
in Original or Modified Versions, may be sold by itself.

2) Original or Modified Versions of the Font Software may be bundled,
redistributed and/or sold with any software, provided that each copy
contains the above copyright notice and this license. These can be
included either as stand-alone text files, human-readable headers or
in the appropriate machine-readable metadata fields within text or
binary files as long as those fields can be easily viewed by the user.

3) No Modified Version of the Font Software may use the Reserved Font
Name(s) unless explicit written permission is granted by the corresponding
Copyright Holder. This restriction only applies to the primary font name as
presented to the users.

4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
Software shall not be used to promote, endorse or advertise any
Modified Version, except to acknowledge the contribution(s) of the
Copyright Holder(s) and the Author(s) or with their explicit written
permission.

5) The Font Software, modified or unmodified, in part or in whole,
must be distributed entirely under this license, and must not be
distributed under any other license. The requirement for fonts to
remain under this license does not apply to any document created
using the Font Software.

TERMINATION
This license becomes null and void if any of the above conditions are
not met.

DISCLAIMER
THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
OTHER DEALINGS IN THE FONT SOFTWARE.

Prawn License (Ruby / GPLv2 / GPLv3)

Components

  • pdf-core 0.10.0 Copyright (c) Alexander Mankuta, Gregory Brown, Brad Ediger, Daniel Nelson, Jonathan Greenberg, James Healy
  • prawn 2.5.0 Copyright (c) Alexander Mankuta, Gregory Brown, Brad Ediger, Daniel Nelson, Jonathan Greenberg, James Healy
  • ttfunk 1.8.0 Copyright (c) Alexander Mankuta, Gregory Brown, Brad Ediger, Daniel Nelson, Jonathan Greenberg, James Healy, Cameron Dutro

License text

Prawn is copyrighted free software produced by Gregory Brown along with 
community contributions.  See git log for authorship information.

Licensing terms follow:

You can redistribute Prawn and/or modify it under either the terms of the GPLv2
or GPLv3 (see GPLv2 and GPLv3 files), or the conditions below:

  1. You may make and give away verbatim copies of the source form of the
     software without restriction, provided that you duplicate all of the
     original copyright notices and associated disclaimers.

  2. You may modify your copy of the software in any way, provided that
     you do at least ONE of the following:

       a) place your modifications in the Public Domain or otherwise
          make them Freely Available, such as by posting said
    modifications to Usenet or an equivalent medium, or by allowing
    the author to include your modifications in the software.

       b) use the modified software only within your corporation or
          organization.

       c) rename any non-standard executables so the names do not conflict
    with standard executables, which must also be provided.

       d) make other distribution arrangements with the author.

  3. You may distribute the software in object code or executable
     form, provided that you do at least ONE of the following:

       a) distribute the executables and library files of the software,
    together with instructions (in the manual page or equivalent)
    on where to get the original distribution.

       b) accompany the distribution with the machine-readable source of
    the software.

       c) give non-standard executables non-standard names, with
          instructions on where to get the original software distribution.

       d) make other distribution arrangements with the author.

  4. You may modify and include the part of the software into any other
     software (possibly commercial). 

  5. The scripts and library files supplied as input to or produced as 
     output from the software do not automatically fall under the
     copyright of the software, but belong to whomever generated them, 
     and may be sold commercially, and may be aggregated with this
     software.

  6. THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
     IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     PURPOSE.

WTFPL

Components

License text

           DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
                   Version 2, December 2004

Copyright (C) 2004 Sam Hocevar <[email protected]>

Everyone is permitted to copy and distribute verbatim or modified
copies of this license document, and changing it is allowed as long
as the name is changed.

           DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
  TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

 0. You just DO WHAT THE FUCK YOU WANT TO.
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