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GNU Affero General Public License
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=================================
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_Version 3, 19 November 2007_
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_Copyright © 2007 Free Software Foundation, Inc. <<http://fsf.org/>>_
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Everyone is permitted to copy and distribute verbatim copies
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of this license document, but changing it is not allowed.
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## Preamble
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The GNU Affero General Public License is a free, copyleft license for
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software and other kinds of works, specifically designed to ensure
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cooperation with the community in the case of network server software.
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The licenses for most software and other practical works are designed
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to take away your freedom to share and change the works. By contrast,
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our General Public Licenses are intended to guarantee your freedom to
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share and change all versions of a program--to make sure it remains free
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software for all its users.
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When we speak of free software, we are referring to freedom, not
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price. Our General Public Licenses are designed to make sure that you
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have the freedom to distribute copies of free software (and charge for
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them if you wish), that you receive source code or can get it if you
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want it, that you can change the software or use pieces of it in new
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free programs, and that you know you can do these things.
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Developers that use our General Public Licenses protect your rights
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with two steps: **(1)** assert copyright on the software, and **(2)** offer
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you this License which gives you legal permission to copy, distribute
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and/or modify the software.
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A secondary benefit of defending all users' freedom is that
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improvements made in alternate versions of the program, if they
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receive widespread use, become available for other developers to
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incorporate. Many developers of free software are heartened and
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encouraged by the resulting cooperation. However, in the case of
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software used on network servers, this result may fail to come about.
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The GNU General Public License permits making a modified version and
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letting the public access it on a server without ever releasing its
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source code to the public.
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The GNU Affero General Public License is designed specifically to
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ensure that, in such cases, the modified source code becomes available
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to the community. It requires the operator of a network server to
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provide the source code of the modified version running there to the
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users of that server. Therefore, public use of a modified version, on
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a publicly accessible server, gives the public access to the source
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code of the modified version.
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An older license, called the Affero General Public License and
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published by Affero, was designed to accomplish similar goals. This is
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a different license, not a version of the Affero GPL, but Affero has
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released a new version of the Affero GPL which permits relicensing under
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this license.
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The precise terms and conditions for copying, distribution and
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modification follow.
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## TERMS AND CONDITIONS
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### 0. Definitions
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“This License” refers to version 3 of the GNU Affero General Public License.
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“Copyright” also means copyright-like laws that apply to other kinds of
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works, such as semiconductor masks.
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“The Program” refers to any copyrightable work licensed under this
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License. Each licensee is addressed as “you”. “Licensees” and
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“recipients” may be individuals or organizations.
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To “modify” a work means to copy from or adapt all or part of the work
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in a fashion requiring copyright permission, other than the making of an
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exact copy. The resulting work is called a “modified version” of the
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earlier work or a work “based on” the earlier work.
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A “covered work” means either the unmodified Program or a work based
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on the Program.
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To “propagate” a work means to do anything with it that, without
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permission, would make you directly or secondarily liable for
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infringement under applicable copyright law, except executing it on a
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computer or modifying a private copy. Propagation includes copying,
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distribution (with or without modification), making available to the
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public, and in some countries other activities as well.
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To “convey” a work means any kind of propagation that enables other
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parties to make or receive copies. Mere interaction with a user through
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a computer network, with no transfer of a copy, is not conveying.
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An interactive user interface displays “Appropriate Legal Notices”
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to the extent that it includes a convenient and prominently visible
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feature that **(1)** displays an appropriate copyright notice, and **(2)**
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tells the user that there is no warranty for the work (except to the
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extent that warranties are provided), that licensees may convey the
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work under this License, and how to view a copy of this License. If
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the interface presents a list of user commands or options, such as a
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menu, a prominent item in the list meets this criterion.
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### 1. Source Code
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The “source code” for a work means the preferred form of the work
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for making modifications to it. “Object code” means any non-source
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form of a work.
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A “Standard Interface” means an interface that either is an official
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standard defined by a recognized standards body, or, in the case of
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interfaces specified for a particular programming language, one that
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is widely used among developers working in that language.
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The “System Libraries” of an executable work include anything, other
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than the work as a whole, that **(a)** is included in the normal form of
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packaging a Major Component, but which is not part of that Major
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Component, and **(b)** serves only to enable use of the work with that
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Major Component, or to implement a Standard Interface for which an
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implementation is available to the public in source code form. A
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“Major Component”, in this context, means a major essential component
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(kernel, window system, and so on) of the specific operating system
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(if any) on which the executable work runs, or a compiler used to
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produce the work, or an object code interpreter used to run it.
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The “Corresponding Source” for a work in object code form means all
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the source code needed to generate, install, and (for an executable
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work) run the object code and to modify the work, including scripts to
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control those activities. However, it does not include the work's
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System Libraries, or general-purpose tools or generally available free
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programs which are used unmodified in performing those activities but
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which are not part of the work. For example, Corresponding Source
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includes interface definition files associated with source files for
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the work, and the source code for shared libraries and dynamically
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linked subprograms that the work is specifically designed to require,
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such as by intimate data communication or control flow between those
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subprograms and other parts of the work.
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The Corresponding Source need not include anything that users
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can regenerate automatically from other parts of the Corresponding
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Source.
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The Corresponding Source for a work in source code form is that
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same work.
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### 2. Basic Permissions
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All rights granted under this License are granted for the term of
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copyright on the Program, and are irrevocable provided the stated
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conditions are met. This License explicitly affirms your unlimited
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permission to run the unmodified Program. The output from running a
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covered work is covered by this License only if the output, given its
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content, constitutes a covered work. This License acknowledges your
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rights of fair use or other equivalent, as provided by copyright law.
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You may make, run and propagate covered works that you do not
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convey, without conditions so long as your license otherwise remains
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in force. You may convey covered works to others for the sole purpose
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of having them make modifications exclusively for you, or provide you
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with facilities for running those works, provided that you comply with
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the terms of this License in conveying all material for which you do
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not control copyright. Those thus making or running the covered works
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for you must do so exclusively on your behalf, under your direction
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and control, on terms that prohibit them from making any copies of
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your copyrighted material outside their relationship with you.
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Conveying under any other circumstances is permitted solely under
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the conditions stated below. Sublicensing is not allowed; section 10
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makes it unnecessary.
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### 3. Protecting Users' Legal Rights From Anti-Circumvention Law
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No covered work shall be deemed part of an effective technological
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measure under any applicable law fulfilling obligations under article
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11 of the WIPO copyright treaty adopted on 20 December 1996, or
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similar laws prohibiting or restricting circumvention of such
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measures.
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When you convey a covered work, you waive any legal power to forbid
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circumvention of technological measures to the extent such circumvention
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is effected by exercising rights under this License with respect to
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the covered work, and you disclaim any intention to limit operation or
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modification of the work as a means of enforcing, against the work's
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users, your or third parties' legal rights to forbid circumvention of
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technological measures.
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### 4. Conveying Verbatim Copies
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You may convey verbatim copies of the Program's source code as you
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receive it, in any medium, provided that you conspicuously and
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appropriately publish on each copy an appropriate copyright notice;
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keep intact all notices stating that this License and any
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non-permissive terms added in accord with section 7 apply to the code;
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keep intact all notices of the absence of any warranty; and give all
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recipients a copy of this License along with the Program.
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You may charge any price or no price for each copy that you convey,
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and you may offer support or warranty protection for a fee.
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### 5. Conveying Modified Source Versions
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You may convey a work based on the Program, or the modifications to
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produce it from the Program, in the form of source code under the
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terms of section 4, provided that you also meet all of these conditions:
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* **a)** The work must carry prominent notices stating that you modified
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it, and giving a relevant date.
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* **b)** The work must carry prominent notices stating that it is
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released under this License and any conditions added under section 7.
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This requirement modifies the requirement in section 4 to
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“keep intact all notices”.
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* **c)** You must license the entire work, as a whole, under this
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License to anyone who comes into possession of a copy. This
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License will therefore apply, along with any applicable section 7
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additional terms, to the whole of the work, and all its parts,
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regardless of how they are packaged. This License gives no
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permission to license the work in any other way, but it does not
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invalidate such permission if you have separately received it.
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* **d)** If the work has interactive user interfaces, each must display
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Appropriate Legal Notices; however, if the Program has interactive
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interfaces that do not display Appropriate Legal Notices, your
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work need not make them do so.
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A compilation of a covered work with other separate and independent
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works, which are not by their nature extensions of the covered work,
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and which are not combined with it such as to form a larger program,
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in or on a volume of a storage or distribution medium, is called an
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“aggregate” if the compilation and its resulting copyright are not
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used to limit the access or legal rights of the compilation's users
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beyond what the individual works permit. Inclusion of a covered work
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in an aggregate does not cause this License to apply to the other
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parts of the aggregate.
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### 6. Conveying Non-Source Forms
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You may convey a covered work in object code form under the terms
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of sections 4 and 5, provided that you also convey the
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machine-readable Corresponding Source under the terms of this License,
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in one of these ways:
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* **a)** Convey the object code in, or embodied in, a physical product
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(including a physical distribution medium), accompanied by the
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Corresponding Source fixed on a durable physical medium
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customarily used for software interchange.
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* **b)** Convey the object code in, or embodied in, a physical product
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(including a physical distribution medium), accompanied by a
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written offer, valid for at least three years and valid for as
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long as you offer spare parts or customer support for that product
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model, to give anyone who possesses the object code either **(1)** a
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copy of the Corresponding Source for all the software in the
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product that is covered by this License, on a durable physical
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medium customarily used for software interchange, for a price no
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more than your reasonable cost of physically performing this
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conveying of source, or **(2)** access to copy the
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Corresponding Source from a network server at no charge.
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* **c)** Convey individual copies of the object code with a copy of the
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written offer to provide the Corresponding Source. This
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alternative is allowed only occasionally and noncommercially, and
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only if you received the object code with such an offer, in accord
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with subsection 6b.
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* **d)** Convey the object code by offering access from a designated
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place (gratis or for a charge), and offer equivalent access to the
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Corresponding Source in the same way through the same place at no
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further charge. You need not require recipients to copy the
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Corresponding Source along with the object code. If the place to
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copy the object code is a network server, the Corresponding Source
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may be on a different server (operated by you or a third party)
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that supports equivalent copying facilities, provided you maintain
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clear directions next to the object code saying where to find the
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Corresponding Source. Regardless of what server hosts the
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Corresponding Source, you remain obligated to ensure that it is
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available for as long as needed to satisfy these requirements.
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* **e)** Convey the object code using peer-to-peer transmission, provided
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you inform other peers where the object code and Corresponding
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Source of the work are being offered to the general public at no
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charge under subsection 6d.
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A separable portion of the object code, whose source code is excluded
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from the Corresponding Source as a System Library, need not be
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included in conveying the object code work.
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A “User Product” is either **(1)** a “consumer product”, which means any
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tangible personal property which is normally used for personal, family,
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or household purposes, or **(2)** anything designed or sold for incorporation
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into a dwelling. In determining whether a product is a consumer product,
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doubtful cases shall be resolved in favor of coverage. For a particular
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product received by a particular user, “normally used” refers to a
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typical or common use of that class of product, regardless of the status
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of the particular user or of the way in which the particular user
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actually uses, or expects or is expected to use, the product. A product
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is a consumer product regardless of whether the product has substantial
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commercial, industrial or non-consumer uses, unless such uses represent
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the only significant mode of use of the product.
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“Installation Information” for a User Product means any methods,
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procedures, authorization keys, or other information required to install
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and execute modified versions of a covered work in that User Product from
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a modified version of its Corresponding Source. The information must
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suffice to ensure that the continued functioning of the modified object
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code is in no case prevented or interfered with solely because
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modification has been made.
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If you convey an object code work under this section in, or with, or
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specifically for use in, a User Product, and the conveying occurs as
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part of a transaction in which the right of possession and use of the
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User Product is transferred to the recipient in perpetuity or for a
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fixed term (regardless of how the transaction is characterized), the
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Corresponding Source conveyed under this section must be accompanied
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by the Installation Information. But this requirement does not apply
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if neither you nor any third party retains the ability to install
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modified object code on the User Product (for example, the work has
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been installed in ROM).
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The requirement to provide Installation Information does not include a
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requirement to continue to provide support service, warranty, or updates
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for a work that has been modified or installed by the recipient, or for
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the User Product in which it has been modified or installed. Access to a
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network may be denied when the modification itself materially and
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adversely affects the operation of the network or violates the rules and
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protocols for communication across the network.
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Corresponding Source conveyed, and Installation Information provided,
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in accord with this section must be in a format that is publicly
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documented (and with an implementation available to the public in
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source code form), and must require no special password or key for
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unpacking, reading or copying.
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### 7. Additional Terms
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“Additional permissions” are terms that supplement the terms of this
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License by making exceptions from one or more of its conditions.
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Additional permissions that are applicable to the entire Program shall
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be treated as though they were included in this License, to the extent
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that they are valid under applicable law. If additional permissions
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apply only to part of the Program, that part may be used separately
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under those permissions, but the entire Program remains governed by
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this License without regard to the additional permissions.
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When you convey a copy of a covered work, you may at your option
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remove any additional permissions from that copy, or from any part of
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it. (Additional permissions may be written to require their own
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removal in certain cases when you modify the work.) You may place
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additional permissions on material, added by you to a covered work,
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for which you have or can give appropriate copyright permission.
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Notwithstanding any other provision of this License, for material you
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add to a covered work, you may (if authorized by the copyright holders of
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that material) supplement the terms of this License with terms:
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* **a)** Disclaiming warranty or limiting liability differently from the
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terms of sections 15 and 16 of this License; or
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* **b)** Requiring preservation of specified reasonable legal notices or
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author attributions in that material or in the Appropriate Legal
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Notices displayed by works containing it; or
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* **c)** Prohibiting misrepresentation of the origin of that material, or
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requiring that modified versions of such material be marked in
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reasonable ways as different from the original version; or
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* **d)** Limiting the use for publicity purposes of names of licensors or
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authors of the material; or
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* **e)** Declining to grant rights under trademark law for use of some
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trade names, trademarks, or service marks; or
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* **f)** Requiring indemnification of licensors and authors of that
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material by anyone who conveys the material (or modified versions of
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it) with contractual assumptions of liability to the recipient, for
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any liability that these contractual assumptions directly impose on
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those licensors and authors.
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All other non-permissive additional terms are considered “further
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restrictions” within the meaning of section 10. If the Program as you
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received it, or any part of it, contains a notice stating that it is
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governed by this License along with a term that is a further
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restriction, you may remove that term. If a license document contains
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a further restriction but permits relicensing or conveying under this
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License, you may add to a covered work material governed by the terms
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of that license document, provided that the further restriction does
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not survive such relicensing or conveying.
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If you add terms to a covered work in accord with this section, you
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must place, in the relevant source files, a statement of the
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additional terms that apply to those files, or a notice indicating
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where to find the applicable terms.
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Additional terms, permissive or non-permissive, may be stated in the
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form of a separately written license, or stated as exceptions;
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the above requirements apply either way.
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### 8. Termination
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You may not propagate or modify a covered work except as expressly
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provided under this License. Any attempt otherwise to propagate or
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modify it is void, and will automatically terminate your rights under
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this License (including any patent licenses granted under the third
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paragraph of section 11).
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However, if you cease all violation of this License, then your
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license from a particular copyright holder is reinstated **(a)**
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provisionally, unless and until the copyright holder explicitly and
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finally terminates your license, and **(b)** permanently, if the copyright
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holder fails to notify you of the violation by some reasonable means
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prior to 60 days after the cessation.
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Moreover, your license from a particular copyright holder is
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reinstated permanently if the copyright holder notifies you of the
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violation by some reasonable means, this is the first time you have
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received notice of violation of this License (for any work) from that
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copyright holder, and you cure the violation prior to 30 days after
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your receipt of the notice.
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Termination of your rights under this section does not terminate the
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licenses of parties who have received copies or rights from you under
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this License. If your rights have been terminated and not permanently
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reinstated, you do not qualify to receive new licenses for the same
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material under section 10.
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### 9. Acceptance Not Required for Having Copies
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You are not required to accept this License in order to receive or
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run a copy of the Program. Ancillary propagation of a covered work
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occurring solely as a consequence of using peer-to-peer transmission
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to receive a copy likewise does not require acceptance. However,
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nothing other than this License grants you permission to propagate or
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modify any covered work. These actions infringe copyright if you do
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not accept this License. Therefore, by modifying or propagating a
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covered work, you indicate your acceptance of this License to do so.
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### 10. Automatic Licensing of Downstream Recipients
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Each time you convey a covered work, the recipient automatically
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receives a license from the original licensors, to run, modify and
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propagate that work, subject to this License. You are not responsible
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for enforcing compliance by third parties with this License.
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An “entity transaction” is a transaction transferring control of an
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organization, or substantially all assets of one, or subdividing an
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organization, or merging organizations. If propagation of a covered
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work results from an entity transaction, each party to that
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transaction who receives a copy of the work also receives whatever
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licenses to the work the party's predecessor in interest had or could
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give under the previous paragraph, plus a right to possession of the
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Corresponding Source of the work from the predecessor in interest, if
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the predecessor has it or can get it with reasonable efforts.
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You may not impose any further restrictions on the exercise of the
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rights granted or affirmed under this License. For example, you may
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not impose a license fee, royalty, or other charge for exercise of
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rights granted under this License, and you may not initiate litigation
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(including a cross-claim or counterclaim in a lawsuit) alleging that
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any patent claim is infringed by making, using, selling, offering for
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sale, or importing the Program or any portion of it.
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### 11. Patents
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A “contributor” is a copyright holder who authorizes use under this
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License of the Program or a work on which the Program is based. The
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work thus licensed is called the contributor's “contributor version”.
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+
A contributor's “essential patent claims” are all patent claims
456
+
owned or controlled by the contributor, whether already acquired or
457
+
hereafter acquired, that would be infringed by some manner, permitted
458
+
by this License, of making, using, or selling its contributor version,
459
+
but do not include claims that would be infringed only as a
460
+
consequence of further modification of the contributor version. For
461
+
purposes of this definition, “control” includes the right to grant
462
+
patent sublicenses in a manner consistent with the requirements of
463
+
this License.
464
+
465
+
Each contributor grants you a non-exclusive, worldwide, royalty-free
466
+
patent license under the contributor's essential patent claims, to
467
+
make, use, sell, offer for sale, import and otherwise run, modify and
468
+
propagate the contents of its contributor version.
469
+
470
+
In the following three paragraphs, a “patent license” is any express
471
+
agreement or commitment, however denominated, not to enforce a patent
472
+
(such as an express permission to practice a patent or covenant not to
473
+
sue for patent infringement). To “grant” such a patent license to a
474
+
party means to make such an agreement or commitment not to enforce a
475
+
patent against the party.
476
+
477
+
If you convey a covered work, knowingly relying on a patent license,
478
+
and the Corresponding Source of the work is not available for anyone
479
+
to copy, free of charge and under the terms of this License, through a
480
+
publicly available network server or other readily accessible means,
481
+
then you must either **(1)** cause the Corresponding Source to be so
482
+
available, or **(2)** arrange to deprive yourself of the benefit of the
483
+
patent license for this particular work, or **(3)** arrange, in a manner
484
+
consistent with the requirements of this License, to extend the patent
485
+
license to downstream recipients. “Knowingly relying” means you have
486
+
actual knowledge that, but for the patent license, your conveying the
487
+
covered work in a country, or your recipient's use of the covered work
488
+
in a country, would infringe one or more identifiable patents in that
489
+
country that you have reason to believe are valid.
490
+
491
+
If, pursuant to or in connection with a single transaction or
492
+
arrangement, you convey, or propagate by procuring conveyance of, a
493
+
covered work, and grant a patent license to some of the parties
494
+
receiving the covered work authorizing them to use, propagate, modify
495
+
or convey a specific copy of the covered work, then the patent license
496
+
you grant is automatically extended to all recipients of the covered
497
+
work and works based on it.
498
+
499
+
A patent license is “discriminatory” if it does not include within
500
+
the scope of its coverage, prohibits the exercise of, or is
501
+
conditioned on the non-exercise of one or more of the rights that are
502
+
specifically granted under this License. You may not convey a covered
503
+
work if you are a party to an arrangement with a third party that is
504
+
in the business of distributing software, under which you make payment
505
+
to the third party based on the extent of your activity of conveying
506
+
the work, and under which the third party grants, to any of the
507
+
parties who would receive the covered work from you, a discriminatory
508
+
patent license **(a)** in connection with copies of the covered work
509
+
conveyed by you (or copies made from those copies), or **(b)** primarily
510
+
for and in connection with specific products or compilations that
511
+
contain the covered work, unless you entered into that arrangement,
512
+
or that patent license was granted, prior to 28 March 2007.
513
+
514
+
Nothing in this License shall be construed as excluding or limiting
515
+
any implied license or other defenses to infringement that may
516
+
otherwise be available to you under applicable patent law.
517
+
518
+
### 12. No Surrender of Others' Freedom
519
+
520
+
If conditions are imposed on you (whether by court order, agreement or
521
+
otherwise) that contradict the conditions of this License, they do not
522
+
excuse you from the conditions of this License. If you cannot convey a
523
+
covered work so as to satisfy simultaneously your obligations under this
524
+
License and any other pertinent obligations, then as a consequence you may
525
+
not convey it at all. For example, if you agree to terms that obligate you
526
+
to collect a royalty for further conveying from those to whom you convey
527
+
the Program, the only way you could satisfy both those terms and this
528
+
License would be to refrain entirely from conveying the Program.
529
+
530
+
### 13. Remote Network Interaction; Use with the GNU General Public License
531
+
532
+
Notwithstanding any other provision of this License, if you modify the
533
+
Program, your modified version must prominently offer all users
534
+
interacting with it remotely through a computer network (if your version
535
+
supports such interaction) an opportunity to receive the Corresponding
536
+
Source of your version by providing access to the Corresponding Source
537
+
from a network server at no charge, through some standard or customary
538
+
means of facilitating copying of software. This Corresponding Source
539
+
shall include the Corresponding Source for any work covered by version 3
540
+
of the GNU General Public License that is incorporated pursuant to the
541
+
following paragraph.
542
+
543
+
Notwithstanding any other provision of this License, you have
544
+
permission to link or combine any covered work with a work licensed
545
+
under version 3 of the GNU General Public License into a single
546
+
combined work, and to convey the resulting work. The terms of this
547
+
License will continue to apply to the part which is the covered work,
548
+
but the work with which it is combined will remain governed by version
549
+
3 of the GNU General Public License.
550
+
551
+
### 14. Revised Versions of this License
552
+
553
+
The Free Software Foundation may publish revised and/or new versions of
554
+
the GNU Affero General Public License from time to time. Such new versions
555
+
will be similar in spirit to the present version, but may differ in detail to
556
+
address new problems or concerns.
557
+
558
+
Each version is given a distinguishing version number. If the
559
+
Program specifies that a certain numbered version of the GNU Affero General
560
+
Public License “or any later version” applies to it, you have the
561
+
option of following the terms and conditions either of that numbered
562
+
version or of any later version published by the Free Software
563
+
Foundation. If the Program does not specify a version number of the
564
+
GNU Affero General Public License, you may choose any version ever published
565
+
by the Free Software Foundation.
566
+
567
+
If the Program specifies that a proxy can decide which future
568
+
versions of the GNU Affero General Public License can be used, that proxy's
569
+
public statement of acceptance of a version permanently authorizes you
570
+
to choose that version for the Program.
571
+
572
+
Later license versions may give you additional or different
573
+
permissions. However, no additional obligations are imposed on any
574
+
author or copyright holder as a result of your choosing to follow a
575
+
later version.
576
+
577
+
### 15. Disclaimer of Warranty
578
+
579
+
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
580
+
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
581
+
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY
582
+
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
583
+
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
584
+
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
585
+
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
586
+
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
587
+
588
+
### 16. Limitation of Liability
589
+
590
+
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
591
+
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
592
+
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
593
+
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
594
+
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
595
+
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
596
+
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
597
+
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
598
+
SUCH DAMAGES.
599
+
600
+
### 17. Interpretation of Sections 15 and 16
601
+
602
+
If the disclaimer of warranty and limitation of liability provided
603
+
above cannot be given local legal effect according to their terms,
604
+
reviewing courts shall apply local law that most closely approximates
605
+
an absolute waiver of all civil liability in connection with the
606
+
Program, unless a warranty or assumption of liability accompanies a
607
+
copy of the Program in return for a fee.
608
+
609
+
_END OF TERMS AND CONDITIONS_
610
+
611
+
## How to Apply These Terms to Your New Programs
612
+
613
+
If you develop a new program, and you want it to be of the greatest
614
+
possible use to the public, the best way to achieve this is to make it
615
+
free software which everyone can redistribute and change under these terms.
616
+
617
+
To do so, attach the following notices to the program. It is safest
618
+
to attach them to the start of each source file to most effectively
619
+
state the exclusion of warranty; and each file should have at least
620
+
the “copyright” line and a pointer to where the full notice is found.
621
+
622
+
<one line to give the program's name and a brief idea of what it does.>
623
+
Copyright (C) <year> <name of author>
624
+
625
+
This program is free software: you can redistribute it and/or modify
626
+
it under the terms of the GNU Affero General Public License as published by
627
+
the Free Software Foundation, either version 3 of the License, or
628
+
(at your option) any later version.
629
+
630
+
This program is distributed in the hope that it will be useful,
631
+
but WITHOUT ANY WARRANTY; without even the implied warranty of
632
+
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
633
+
GNU Affero General Public License for more details.
634
+
635
+
You should have received a copy of the GNU Affero General Public License
636
+
along with this program. If not, see <http://www.gnu.org/licenses/>.
637
+
638
+
Also add information on how to contact you by electronic and paper mail.
639
+
640
+
If your software can interact with users remotely through a computer
641
+
network, you should also make sure that it provides a way for users to
642
+
get its source. For example, if your program is a web application, its
643
+
interface could display a “Source” link that leads users to an archive
644
+
of the code. There are many ways you could offer source, and different
645
+
solutions will be better for different programs; see section 13 for the
646
+
specific requirements.
647
+
648
+
You should also get your employer (if you work as a programmer) or school,
649
+
if any, to sign a “copyright disclaimer” for the program, if necessary.
650
+
For more information on this, and how to apply and follow the GNU AGPL, see
651
+
<<http://www.gnu.org/licenses/>>.
+91
README.md
+91
README.md
···
1
+
[](https://github.com/alyraffauf/atboards/actions/workflows/docker.yml) [](https://www.gnu.org/licenses/agpl-3.0) [](https://ko-fi.com/alyraffauf)
2
+
3
+
<div align="center">
4
+
<h1>atboards</h1>
5
+
<h3>Decentralized bulletin boards on atproto.</h3>
6
+
<p>Anyone can run a BBS from their own account, no server required. Users own their posts, and communities can migrate freely.</p>
7
+
</div>
8
+
9
+
## Features
10
+
11
+
- **Web app and TUI**: Browse, post, and manage BBSes from your browser or terminal.
12
+
- **Built on atproto**: All data lives in user repos as `xyz.atboards` records. No central database.
13
+
- **No server needed to run a BBS**: A sysop just publishes records to their own PDS.
14
+
- **OAuth login**: Sign in with your Bluesky handle or any atproto account.
15
+
- **Discover BBSes**: The home screen shows BBSes from across the network.
16
+
- **Flat replies**: Threads with chronological replies, plain text.
17
+
- **Sysop tools**: Create and edit your BBS, manage boards, post news.
18
+
- **Self-hostable**: One Docker command to run the web app.
19
+
20
+
## Quick start
21
+
22
+
### TUI (recommended)
23
+
24
+
Requires Python 3.14+ and [uv](https://docs.astral.sh/uv/).
25
+
26
+
```bash
27
+
uv tool install atboards
28
+
atb
29
+
```
30
+
31
+
Or from source:
32
+
33
+
```bash
34
+
git clone https://github.com/alyraffauf/atboards.git
35
+
cd atboards
36
+
uv sync
37
+
uv run atb
38
+
```
39
+
40
+
### Web app (Docker)
41
+
42
+
```bash
43
+
docker run -d -p 8000:8000 -v atboards-data:/data -e PUBLIC_URL=https://your-domain.com ghcr.io/alyraffauf/atboards:latest
44
+
```
45
+
46
+
Or with Docker Compose:
47
+
48
+
```bash
49
+
git clone https://github.com/alyraffauf/atboards.git
50
+
cd atboards
51
+
docker compose up -d
52
+
```
53
+
54
+
Visit `http://localhost:8000`.
55
+
56
+
### Web app (from source)
57
+
58
+
```bash
59
+
git clone https://github.com/alyraffauf/atboards.git
60
+
cd atboards
61
+
uv sync
62
+
just dev
63
+
```
64
+
65
+
## Architecture
66
+
67
+
atboards has no backend database for content. All BBS data lives in atproto repos:
68
+
69
+
- **Sysop records**: `xyz.atboards.site`, `xyz.atboards.board`, `xyz.atboards.news`
70
+
- **User records**: `xyz.atboards.thread`, `xyz.atboards.reply`
71
+
72
+
The web app and TUI query existing network infrastructure:
73
+
74
+
- [Slingshot](https://slingshot.microcosm.blue/) — cached record and identity fetching
75
+
- [Constellation](https://constellation.microcosm.blue/) — backlink index for discovering threads and replies
76
+
- [UFOs](https://ufos.microcosm.blue/) — BBS discovery feed
77
+
78
+
## Configuration
79
+
80
+
On first run, atboards generates:
81
+
82
+
- `secrets.json` — app secret key and OAuth client signing key
83
+
- `atboards.db` — SQLite database for OAuth sessions
84
+
85
+
**Web app**: Set `ATBOARDS_DATA_DIR` to control where these are stored (default: current directory, `/data` in Docker). Set `PUBLIC_URL` to your domain for OAuth callbacks.
86
+
87
+
**TUI**: Data is stored in `~/.local/share/atboards/` (Linux), `~/Library/Application Support/atboards/` (macOS), or `%APPDATA%/atboards/` (Windows).
88
+
89
+
## License
90
+
91
+
[AGPL-3.0](LICENSE.md)