@kenotelic/palimpsest

Copyright (c) 2026 Matt Creenan. All Rights Reserved.

palimpsest is licensed under the Common Public Attribution License Version 1.0
(CPAL-1.0). SPDX-License-Identifier: CPAL-1.0

NON-BINDING SUMMARY (the full license text below controls): palimpsest is open
source. You may use, modify, and distribute it. CPAL adds two conditions beyond
a permissive license: (1) per Section 14 and Exhibit B, any user interface that
gives end users access to this software — including the HTML guides it generates,
which embed palimpsest's own engine code — must display the "Built with
palimpsest" attribution linking to https://github.com/mcreenan/palimpsest; and
(2) per Section 15, making the software available over a network counts as
distribution, so modifications must be made available in source form.

================================================================================

Common Public Attribution License Version 1.0 (CPAL-1.0)

1. "Definitions"

1.0.1 "Commercial Use" means distribution or otherwise making the Covered Code
available to a third party.

1.1 "Contributor" means each entity that creates or contributes to the creation
of Modifications.

1.2 "Contributor Version" means the combination of the Original Code, prior
Modifications used by a Contributor, and the Modifications made by that
particular Contributor.

1.3 "Covered Code" means the Original Code or Modifications or the combination of
the Original Code and Modifications, in each case including portions thereof.

1.4 "Electronic Distribution Mechanism" means a mechanism generally accepted in
the software development community for the electronic transfer of data.

1.5 "Executable" means Covered Code in any form other than Source Code.

1.6 "Initial Developer" means the individual or entity identified as the Initial
Developer in the Source Code notice required by Exhibit A.

1.7 "Larger Work" means a work which combines Covered Code or portions thereof
with code not governed by the terms of this License.

1.8 "License" means this document.

1.8.1 "Licensable" means having the right to grant, to the maximum extent
possible, whether at the time of the initial grant or subsequently acquired, any
and all of the rights conveyed herein.

1.9 "Modifications" means any addition to or deletion from the substance or
structure of either the Original Code or any previous Modifications. When Covered
Code is released as a series of files, a Modification is:

A. Any addition to or deletion from the contents of a file containing Original
Code or previous Modifications.

B. Any new file that contains any part of the Original Code or previous
Modifications.

1.10 "Original Code" means Source Code of computer software code which is
described in the Source Code notice required by Exhibit A as Original Code, and
which, at the time of its release under this License is not already Covered Code
governed by this License.

1.10.1 "Patent Claims" means any patent claim(s), now owned or hereafter
acquired, including without limitation, method, process, and apparatus claims, in
any patent Licensable by grantor.

1.11 "Source Code" means the preferred form of the Covered Code for making
modifications to it, including all modules it contains, plus any associated
interface definition files, scripts used to control compilation and installation
of an Executable, or source code differential comparisons against either the
Original Code or another well known, available Covered Code of the Contributor's
choice. The Source Code can be in a compressed or archival form, provided the
appropriate decompression or de-archiving software is widely available for no
charge.

1.12 "You" (or "Your") means an individual or a legal entity exercising rights
under, and complying with all of the terms of, this License or a future version
of this License issued under Section 6.1. For legal entities, "You" includes any
entity which 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. Source Code License.

2.1 The Initial Developer Grant.
The Initial Developer hereby grants You a world-wide, royalty-free, non-exclusive
license, subject to third party intellectual property claims:

(a) under intellectual property rights (other than patent or trademark)
Licensable by Initial Developer to use, reproduce, modify, display, perform,
sublicense and distribute the Original Code (or portions thereof) with or without
Modifications, and/or as part of a Larger Work; and

(b) under Patents Claims infringed by the making, using or selling of Original
Code, to make, have made, use, practice, sell, and offer for sale, and/or
otherwise dispose of the Original Code (or portions thereof).

(c) the licenses granted in this Section 2.1(a) and (b) are effective on the date
Initial Developer first distributes Original Code under the terms of this
License.

(d) Notwithstanding Section 2.1(b) above, no patent license is granted: 1) for
code that You delete from the Original Code; 2) separate from the Original Code;
or 3) for infringements caused by: i) the modification of the Original Code or
ii) the combination of the Original Code with other software or devices.

2.2 Contributor Grant.
Subject to third party intellectual property claims, 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 Contributor, to use, reproduce, modify, display, perform,
sublicense and distribute the Modifications created by such Contributor (or
portions thereof) either on an unmodified basis, with other Modifications, as
Covered Code and/or as part of a Larger Work; and

(b) under Patent Claims infringed by the making, using, or selling of
Modifications made by that Contributor either alone and/or in combination with
its Contributor Version (or portions of such combination), to make, use, sell,
offer for sale, have made, and/or otherwise dispose of: 1) Modifications made by
that Contributor (or portions thereof); and 2) the combination of Modifications
made by that Contributor with its Contributor Version (or portions of such
combination).

(c) the licenses granted in Sections 2.2(a) and 2.2(b) are effective on the date
Contributor first makes Commercial Use of the Covered Code.

(d) Notwithstanding Section 2.2(b) above, no patent license is granted: 1) for
any code that Contributor has deleted from the Contributor Version; 2) separate
from the Contributor Version; 3) for infringements caused by: i) third party
modifications of Contributor Version or ii) the combination of Modifications made
by that Contributor with other software (except as part of the Contributor
Version) or other devices; or 4) under Patent Claims infringed by Covered Code in
the absence of Modifications made by that Contributor.

3. Distribution Obligations.

3.1 Application of License.
The Modifications which You create or to which You contribute are governed by the
terms of this License, including without limitation Section 2.2. The Source Code
version of Covered Code may be distributed only under the terms of this License or
a future version of this License released under Section 6.1, and You must include
a copy of this License with every copy of the Source Code You distribute. You may
not offer or impose any terms on any Source Code version that alters or restricts
the applicable version of this License or the recipients' rights hereunder.
However, You may include an additional document offering the additional rights
described in Section 3.5.

3.2 Availability of Source Code.
Any Modification which You create or to which You contribute must be made
available in Source Code form under the terms of this License either on the same
media as an Executable version or via an accepted Electronic Distribution
Mechanism to anyone to whom you made an Executable version available; and if made
available via Electronic Distribution Mechanism, must remain available for at
least twelve (12) months after the date it initially became available, or at
least six (6) months after a subsequent version of that particular Modification
has been made available to such recipients. You are responsible for ensuring that
the Source Code version remains available even if the Electronic Distribution
Mechanism is maintained by a third party.

3.3 Description of Modifications.
You must cause all Covered Code to which You contribute to contain a file
documenting the changes You made to create that Covered Code and the date of any
change. You must include a prominent statement that the Modification is derived,
directly or indirectly, from Original Code provided by the Initial Developer and
including the name of the Initial Developer in (a) the Source Code, and (b) in any
notice in an Executable version or related documentation in which You describe the
origin or ownership of the Covered Code.

3.4 Intellectual Property Matters

(a) Third Party Claims.
If Contributor has knowledge that a license under a third party's intellectual
property rights is required to exercise the rights granted by such Contributor
under Sections 2.1 or 2.2, Contributor must include a text file with the Source
Code distribution titled "LEGAL" which describes the claim and the party making
the claim in sufficient detail that a recipient will know whom to contact. If
Contributor obtains such knowledge after the Modification is made available as
described in Section 3.2, Contributor shall promptly modify the LEGAL file in all
copies Contributor makes available thereafter and shall take other steps (such as
notifying appropriate mailing lists or newsgroups) reasonably calculated to inform
those who received the Covered Code that new knowledge has been obtained.

(b) Contributor APIs.
If Contributor's Modifications include an application programming interface and
Contributor has knowledge of patent licenses which are reasonably necessary to
implement that API, Contributor must also include this information in the LEGAL
file.

(c) Representations.
Contributor represents that, except as disclosed pursuant to Section 3.4(a)
above, Contributor believes that Contributor's Modifications are Contributor's
original creation(s) and/or Contributor has sufficient rights to grant the rights
conveyed by this License.

3.5 Required Notices.
You must duplicate the notice in Exhibit A in each file of the Source Code. If it
is not possible to put such notice in a particular Source Code file due to its
structure, then You must include such notice in a location (such as a relevant
directory) where a user would be likely to look for such a notice. If You created
one or more Modification(s) You may add your name as a Contributor to the notice
described in Exhibit A. You must also duplicate this License in any documentation
for the Source Code where You describe recipients' rights or ownership rights
relating to Covered Code. You may choose to offer, and to charge a fee for,
warranty, support, indemnity or liability obligations to one or more recipients of
Covered Code. However, You may do so only on Your own behalf, and not on behalf of
the Initial Developer or any Contributor. You must make it absolutely clear than
any such warranty, support, indemnity or liability obligation is offered by You
alone, and You hereby agree to indemnify the Initial Developer and every
Contributor for any liability incurred by the Initial Developer or such
Contributor as a result of warranty, support, indemnity or liability terms You
offer.

3.6 Distribution of Executable Versions.
You may distribute Covered Code in Executable form only if the requirements of
Section 3.1-3.5 have been met for that Covered Code, and if You include a notice
stating that the Source Code version of the Covered Code is available under the
terms of this License, including a description of how and where You have fulfilled
the obligations of Section 3.2. The notice must be conspicuously included in any
notice in an Executable version, related documentation or collateral in which You
describe recipients' rights relating to the Covered Code. You may distribute the
Executable version of Covered Code or ownership rights under a license of Your
choice, which may contain terms different from this License, provided that You are
in compliance with the terms of this License and that the license for the
Executable version does not attempt to limit or alter the recipient's rights in
the Source Code version from the rights set forth in this License. If You
distribute the Executable version under a different license You must make it
absolutely clear that any terms which differ from this License are offered by You
alone, not by the Initial Developer, Original Developer or any Contributor. You
hereby agree to indemnify the Initial Developer, Original Developer and every
Contributor for any liability incurred by the Initial Developer, Original
Developer or such Contributor as a result of any such terms You offer.

3.7 Larger Works.
You may create a Larger Work by combining Covered Code with other code not
governed by the terms of this License and distribute the Larger Work as a single
product. In such a case, You must make sure the requirements of this License are
fulfilled for the Covered Code.

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 Code 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 included in the LEGAL file described in Section 3.4 and must be
included with all distributions of the Source Code. 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. Application of this License.

This License applies to code to which the Initial Developer has attached the
notice in Exhibit A and to related Covered Code.

6. Versions of the License.

6.1 New Versions.
Socialtext, Inc. ("Socialtext") may publish revised and/or new versions of the
License from time to time. Each version will be given a distinguishing version
number.

6.2 Effect of New Versions.
Once Covered Code has been published under a particular version of the License,
You may always continue to use it under the terms of that version. You may also
choose to use such Covered Code under the terms of any subsequent version of the
License published by Socialtext. No one other than Socialtext has the right to
modify the terms applicable to Covered Code created under this License.

6.3 Derivative Works.
If You create or use a modified version of this License (which you may only do in
order to apply it to code which is not already Covered Code governed by this
License), You must (a) rename Your license so that the phrases "Socialtext",
"CPAL" or any confusingly similar phrase do not appear in your license (except to
note that your license differs from this License) and (b) otherwise make it clear
that Your version of the license contains terms which differ from the CPAL.
(Filling in the name of the Initial Developer, Original Developer, Original Code or
Contributor in the notice described in Exhibit A shall not of themselves be deemed
to be modifications of this License.)

7. DISCLAIMER OF WARRANTY.

COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION,
WARRANTIES THAT THE COVERED CODE 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 CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE
DEFECTIVE IN ANY RESPECT, YOU (NOT THE INITIAL DEVELOPER, ORIGINAL DEVELOPER OR
ANY OTHER 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 CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS
DISCLAIMER.

8. TERMINATION.

8.1 This License and the rights granted hereunder will terminate automatically if
You fail to comply with terms herein and fail to cure such breach within 30 days
of becoming aware of the breach. All sublicenses to the Covered Code which are
properly granted shall survive any termination of this License. Provisions which,
by their nature, must remain in effect beyond the termination of this License
shall survive.

8.2 If You initiate litigation by asserting a patent infringement claim (excluding
declatory judgment actions) against Initial Developer, Original Developer or a
Contributor (the Initial Developer, Original Developer or Contributor against whom
You file such action is referred to as "Participant") alleging that:

(a) such Participant's Contributor Version directly or indirectly infringes any
patent, then any and all rights granted by such Participant to You under Sections
2.1 and/or 2.2 of this License shall, upon 60 days notice from Participant
terminate prospectively, unless if within 60 days after receipt of notice You
either: (i) agree in writing to pay Participant a mutually agreeable reasonable
royalty for Your past and future use of Modifications made by such Participant, or
(ii) withdraw Your litigation claim with respect to the Contributor Version
against such Participant. If within 60 days of notice, a reasonable royalty and
payment arrangement are not mutually agreed upon in writing by the parties or the
litigation claim is not withdrawn, the rights granted by Participant to You under
Sections 2.1 and/or 2.2 automatically terminate at the expiration of the 60 day
notice period specified above.

(b) any software, hardware, or device, other than such Participant's Contributor
Version, directly or indirectly infringes any patent, then any rights granted to
You by such Participant under Sections 2.1(b) and 2.2(b) are revoked effective as
of the date You first made, used, sold, distributed, or had made, Modifications
made by that Participant.

8.3 If You assert a patent infringement claim against Participant alleging that
such Participant's Contributor Version directly or indirectly infringes any patent
where such claim is resolved (such as by license or settlement) prior to the
initiation of patent infringement litigation, then the reasonable value of the
licenses granted by such Participant under Sections 2.1 or 2.2 shall be taken into
account in determining the amount or value of any payment or license.

8.4 In the event of termination under Sections 8.1 or 8.2 above, all end user
license agreements (excluding distributors and resellers) which have been validly
granted by You or any distributor hereunder prior to termination shall survive
termination.

9. LIMITATION OF LIABILITY.

UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, WHETHER TORT (INCLUDING
NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL YOU, THE INITIAL DEVELOPER, ORIGINAL
DEVELOPER, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF COVERED CODE, OR ANY
SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO ANY PERSON FOR ANY INDIRECT,
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY CHARACTER INCLUDING, WITHOUT
LIMITATION, DAMAGES FOR 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.

10. U.S. GOVERNMENT END USERS.

The Covered Code is a "commercial item," as that term is defined in 48 C.F.R.
2.101 (Oct. 1995), consisting of "commercial computer software" and "commercial
computer software documentation," as such terms are used in 48 C.F.R. 12.212
(Sept. 1995). Consistent with 48 C.F.R. 12.212 and 48 C.F.R. 227.7202-1 through
227.7202-4 (June 1995), all U.S. Government End Users acquire Covered Code with
only those rights set forth herein.

11. MISCELLANEOUS.

This License represents the complete agreement concerning 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. This License
shall be governed by California law provisions (except to the extent applicable
law, if any, provides otherwise), excluding its conflict-of-law provisions. With
respect to disputes in which at least one party is a citizen of, or an entity
chartered or registered to do business in the United States of America, any
litigation relating to this License shall be subject to the jurisdiction of the
Federal Courts of the Northern District of California, with venue lying in Santa
Clara County, California, with the losing party responsible for costs, including
without limitation, court costs and reasonable attorneys' fees and expenses. The
application of the United Nations Convention on Contracts for the International
Sale of Goods is expressly excluded. Any law or regulation which provides that the
language of a contract shall be construed against the drafter shall not apply to
this License.

12. RESPONSIBILITY FOR CLAIMS.

As between Initial Developer, Original Developer and the Contributors, each party
is responsible for claims and damages arising, directly or indirectly, out of its
utilization of rights under this License and You agree to work with Initial
Developer, Original Developer and Contributors to distribute such responsibility
on an equitable basis. Nothing herein is intended or shall be deemed to constitute
any admission of liability.

13. MULTIPLE-LICENSED CODE.

Initial Developer may designate portions of the Covered Code as Multiple-Licensed.
Multiple-Licensed means that the Initial Developer permits you to utilize portions
of the Covered Code under Your choice of the CPAL or the alternative licenses, if
any, specified by the Initial Developer in the file described in Exhibit A.

14. ADDITIONAL TERM: ATTRIBUTION

(a) As a modest attribution to the organizer of the development of the Original
Code ("Original Developer"), in the hope that its promotional value may help
justify the time, money and effort invested in writing the Original Code, the
Original Developer may include in Exhibit B ("Attribution Information") a
requirement that each time an Executable and Source Code or a Larger Work is
launched or initially run (which includes initiating a session), a prominent
display of the Original Developer's Attribution Information (as defined below) must
occur on the graphic user interface employed by the end user to access such
Covered Code (which may include display on a splash screen), if any. The size of
the graphic image should be consistent with the size of the other elements of the
Attribution Information. If the access by the end user to the Executable and
Source Code does not create a graphic user interface for access to the Covered
Code, this obligation shall not apply. If the Original Code displays such
Attribution Information in a particular form (such as in the form of a splash
screen, notice at login, an "about" display, or dedicated attribution area on user
interface screens), continued use of such form for that Attribution Information is
one way of meeting this requirement for notice.

(b) Attribution information may only include a copyright notice, a brief phrase,
graphic image and a URL ("Attribution Information") and is subject to the
Attribution Limits as defined below. For these purposes, prominent shall mean
display for sufficient duration to give reasonable notice to the user of the
identity of the Original Developer and that if You include Attribution Information
or similar information for other parties, You must ensure that the Attribution
Information for the Original Developer shall be no less prominent than such
Attribution Information or similar information for the other party. For greater
certainty, the Original Developer may choose to specify in Exhibit B below that the
above attribution requirement only applies to an Executable and Source Code
resulting from the Original Code or any Modification, but not a Larger Work. The
intent is to provide for reasonably modest attribution, therefore the Original
Developer cannot require that You display, at any time, more than the following
information as Attribution Information: (a) a copyright notice including the name
of the Original Developer; (b) a word or one phrase (not exceeding 10 words); (c)
one graphic image provided by the Original Developer; and (d) a URL (collectively,
the "Attribution Limits").

(c) If Exhibit B does not include any Attribution Information, then there are no
requirements for You to display any Attribution Information of the Original
Developer.

(d) You acknowledge that all trademarks, service marks and/or trade names
contained within the Attribution Information distributed with the Covered Code are
the exclusive property of their owners and may only be used with the permission of
their owners, or under circumstances otherwise permitted by law or as expressly
set out in this License.

15. ADDITIONAL TERM: NETWORK USE.

The term "External Deployment" means the use, distribution, or communication of
the Original Code or Modifications in any way such that the Original Code or
Modifications may be used by anyone other than You, whether those works are
distributed or communicated to those persons or made available as an application
intended for use over a network. As an express condition for the grants of license
hereunder, You must treat any External Deployment by You of the Original Code or
Modifications as a distribution under section 3.1 and make Source Code available
under Section 3.2.

================================================================================

EXHIBIT A. Common Public Attribution License Version 1.0.

"The contents of this file are subject to the Common Public Attribution License
Version 1.0 (the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
https://opensource.org/license/cpal-1-0. The License is based on the Mozilla
Public License Version 1.1 but Sections 14 and 15 have been added to cover use of
software over a computer network and provide for limited attribution for the
Original Developer. In addition, Exhibit A has been modified to be consistent with
Exhibit B.

Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
WARRANTY OF ANY KIND, either express or implied. See the License for the specific
language governing rights and limitations under the License.

The Original Code is palimpsest.

The Original Developer is not the Initial Developer and is ____. If left blank,
the Original Developer is the Initial Developer.

The Initial Developer of the Original Code is Matt Creenan. All portions of the
code written by Matt Creenan are Copyright (c) 2026. All Rights Reserved.

Contributor ____."

================================================================================

EXHIBIT B. Attribution Information

Attribution Copyright Notice: Copyright (c) 2026 Matt Creenan

Attribution Phrase (not exceeding 10 words): Built with palimpsest

Attribution URL: https://github.com/mcreenan/palimpsest

Graphic Image as provided in the Covered Code, if any: None.

Display of Attribution Information is required in Larger Works which are defined in
the CPAL as a work which combines Covered Code or portions thereof with code not
governed by the terms of the CPAL.