> ## Documentation Index
> Fetch the complete documentation index at: https://help.propops.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Open Source Notices

> Acknowledgements and licence attributions for the open source libraries, frameworks, and dependencies used in the PropOps Web application.

<Info>
  **Effective date:** 5 April 2026\
  **Last updated:** 6 April 2026
</Info>

## 1. Acknowledgements

PropOps Web incorporates open source software components developed and maintained by their respective authors and communities. PropOps Technologies Ltd gratefully acknowledges the contributions of these projects.

This page provides the required licence notices and attributions for all open source software distributed within PropOps Web.

***

## 2. Licence Summary

The following licence types are used by the open source components included in PropOps Web:

| Licence                                | SPDX Identifier | Full Text                                                                            |
| -------------------------------------- | --------------- | ------------------------------------------------------------------------------------ |
| MIT License                            | `MIT`           | [opensource.org/licenses/MIT](https://opensource.org/licenses/MIT)                   |
| BSD 2-Clause License                   | `BSD-2-Clause`  | [opensource.org/licenses/BSD-2-Clause](https://opensource.org/licenses/BSD-2-Clause) |
| BSD 3-Clause License                   | `BSD-3-Clause`  | [opensource.org/licenses/BSD-3-Clause](https://opensource.org/licenses/BSD-3-Clause) |
| Apache License 2.0                     | `Apache-2.0`    | [apache.org/licenses/LICENSE-2.0](https://www.apache.org/licenses/LICENSE-2.0)       |
| ISC License                            | `ISC`           | [opensource.org/licenses/ISC](https://opensource.org/licenses/ISC)                   |
| GNU Lesser General Public License v3.0 | `LGPL-3.0`      | [gnu.org/licenses/lgpl-3.0](https://www.gnu.org/licenses/lgpl-3.0.html)              |
| Mozilla Public License 2.0             | `MPL-2.0`       | [mozilla.org/en-US/MPL/2.0](https://www.mozilla.org/en-US/MPL/2.0/)                  |
| SIL Open Font License 1.1              | `OFL-1.1`       | [openfontlicense.org](https://openfontlicense.org)                                   |

***

## 3. JavaScript Dependencies

### 3.1 MIT License

The following JavaScript packages are distributed under the MIT License:

| Package                                | Version | Copyright               |
| -------------------------------------- | ------- | ----------------------- |
| Alpine.js                              | 3.x     | © Caleb Porzio          |
| Autoprefixer                           | 10.x    | © Andrey Sitnik         |
| Chart.js                               | 4.x     | © Chart.js Contributors |
| Cytoscape.js                           | 3.x     | © Cytoscape Consortium  |
| cytoscape-dagre                        | 2.x     | © Cytoscape Consortium  |
| cytoscape-popper                       | 4.x     | © Cytoscape Consortium  |
| dagre                                  | 0.8.x   | © Chris Olszewski       |
| esbuild                                | 0.x     | © Evan Wallace          |
| Flowbite                               | 4.x     | © Bergside Inc.         |
| flowbite-typography                    | 1.x     | © Bergside Inc.         |
| marked                                 | 11.x    | © Christopher Jeffrey   |
| Monaco Editor                          | 0.x     | © Microsoft Corporation |
| OverlayScrollbars                      | 2.x     | © Rene Haas (KingSora)  |
| Plyr                                   | 3.x     | © Sam Potts             |
| PostCSS                                | 8.x     | © Andrey Sitnik         |
| postcss-cli                            | 11.x    | © postcss Contributors  |
| Tailwind CSS                           | 4.x     | © Tailwind Labs, Inc.   |
| @tailwindcss/forms                     | 0.5.x   | © Tailwind Labs, Inc.   |
| @tailwindcss/typography                | 0.5.x   | © Tailwind Labs, Inc.   |
| TipTap (core, extensions, starter-kit) | 3.x     | © Tiptap GmbH           |
| Tippy.js                               | 6.x     | © atomiks               |
| Cropper.js                             | 1.x     | © Chen Fengyuan         |
| Flowbite Datepicker                    | —       | © Bergside Inc.         |
| Flowbite Icons                         | —       | © Bergside Inc.         |

<Accordion title="MIT 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.
</Accordion>

### 3.2 Apache License 2.0

| Package     | Version | Copyright             |
| ----------- | ------- | --------------------- |
| PDF.js      | 3.x     | © Mozilla Foundation  |
| Video.js    | 8.x     | © Brightcove, Inc.    |
| vis-data    | 8.x     | © vis.js Contributors |
| vis-network | 10.x    | © vis.js Contributors |

<Accordion title="Apache License 2.0 Notice">
  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:

  [https://www.apache.org/licenses/LICENSE-2.0](https://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.
</Accordion>

### 3.3 BSD 2-Clause License

| Package            | Version | Copyright      |
| ------------------ | ------- | -------------- |
| @mapbox/mapbox-sdk | 0.16.x  | © Mapbox, Inc. |
| dotenv (Node.js)   | 17.x    | © Scott Motte  |

### 3.4 LGPL-3.0 License

<Warning>
  The following packages are distributed under the GNU Lesser General Public License v3.0. In accordance with the LGPL-3.0, PropOps Web uses these libraries in their unmodified form and links to them dynamically, preserving the end user's ability to replace them with compatible versions.
</Warning>

| Package           | Version | Copyright                        |
| ----------------- | ------- | -------------------------------- |
| Simple DataTables | 10.x    | © Simple DataTables Contributors |
| diff-dom          | —       | © diff-dom Contributors          |

The complete LGPL-3.0 licence text is available at [gnu.org/licenses/lgpl-3.0.html](https://www.gnu.org/licenses/lgpl-3.0.html).

### 3.5 SIL Open Font License 1.1

| Package                       | Version | Copyright          |
| ----------------------------- | ------- | ------------------ |
| Inter (via @fontsource/inter) | 5.x     | © Rasmus Andersson |

The Inter typeface is licensed under the SIL Open Font License 1.1. This licence permits use, modification, and redistribution provided the font is not sold by itself. The full licence text is available at [openfontlicense.org](https://openfontlicense.org).

***

## 4. PHP Dependencies

### 4.1 MIT License

| Package                       | Version | Copyright                                     |
| ----------------------------- | ------- | --------------------------------------------- |
| getbrevo/brevo-php            | 2.x     | © Brevo SA                                    |
| guzzlehttp/guzzle             | 7.x     | © Michael Dowling and GuzzleHTTP Contributors |
| guzzlehttp/promises           | 2.x     | © Michael Dowling and GuzzleHTTP Contributors |
| guzzlehttp/psr7               | 2.x     | © Michael Dowling and GuzzleHTTP Contributors |
| minishlink/web-push           | 10.x    | © Louis Lagrange                              |
| monolog/monolog               | 2.x     | © Jordi Boggiano                              |
| ramsey/uuid                   | 4.x     | © Ben Ramsey                                  |
| brick/math                    | 0.x     | © Benjamin Morel                              |
| web-token/jwt-library         | 4.x     | © Spomky Labs                                 |
| spomky-labs/base64url         | 2.x     | © Spomky Labs                                 |
| spomky-labs/pki-framework     | 1.x     | © Spomky Labs                                 |
| symfony/deprecation-contracts | 3.x     | © Fabien Potencier                            |
| symfony/polyfill-ctype        | 1.x     | © Fabien Potencier                            |
| symfony/polyfill-mbstring     | 1.x     | © Fabien Potencier                            |
| symfony/polyfill-php80        | 1.x     | © Fabien Potencier                            |
| symfony/polyfill-php83        | 1.x     | © Fabien Potencier                            |
| graham-campbell/result-type   | 1.x     | © Graham Campbell                             |
| ralouphie/getallheaders       | 3.x     | © Ralph Khattar                               |
| ramsey/collection             | 2.x     | © Ben Ramsey                                  |
| doctrine/instantiator         | 2.x     | © Doctrine Project                            |
| myclabs/deep-copy             | 1.x     | © My C-Labs                                   |

### 4.2 BSD 3-Clause License

| Package                          | Version | Copyright              |
| -------------------------------- | ------- | ---------------------- |
| vlucas/phpdotenv                 | 5.x     | © Vance Lucas          |
| phpunit/phpunit                  | 9.x     | © Sebastian Bergmann   |
| phpunit/php-code-coverage        | —       | © Sebastian Bergmann   |
| phpunit/php-file-iterator        | —       | © Sebastian Bergmann   |
| phpunit/php-invoker              | —       | © Sebastian Bergmann   |
| phpunit/php-text-template        | —       | © Sebastian Bergmann   |
| phpunit/php-timer                | —       | © Sebastian Bergmann   |
| squizlabs/php\_codesniffer       | 3.x     | © Squiz Pty Ltd        |
| nikic/php-parser                 | 5.x     | © Nikita Popov         |
| sebastian/\* (multiple packages) | —       | © Sebastian Bergmann   |
| phar-io/manifest                 | 2.x     | © Phar.io Contributors |
| phar-io/version                  | 3.x     | © Phar.io Contributors |
| theseer/tokenizer                | 1.x     | © Arne Blankerts       |

### 4.3 Apache License 2.0

| Package             | Version | Copyright             |
| ------------------- | ------- | --------------------- |
| phpoption/phpoption | 1.x     | © Johannes M. Schmitt |

### 4.4 MIT License (PSR Interfaces)

| Package          | Version | Copyright |
| ---------------- | ------- | --------- |
| psr/http-message | 2.x     | © PHP-FIG |
| psr/http-client  | 1.x     | © PHP-FIG |
| psr/http-factory | 1.x     | © PHP-FIG |
| psr/log          | 3.x     | © PHP-FIG |
| psr/clock        | 1.x     | © PHP-FIG |

***

## 5. Build Tools

The following open source tools are used during the build process and are **not** distributed within the PropOps Web Docker image:

| Tool         | Licence | Copyright              |
| ------------ | ------- | ---------------------- |
| PostCSS      | MIT     | © Andrey Sitnik        |
| postcss-cli  | MIT     | © postcss Contributors |
| esbuild      | MIT     | © Evan Wallace         |
| Autoprefixer | MIT     | © Andrey Sitnik        |
| LightningCSS | MPL-2.0 | © Devon Govett         |
| PHPStan      | MIT     | © Ondřej Mirtes        |

***

## 6. Special Licence Notices

### 6.1 GSAP (GreenSock Animation Platform)

GSAP is distributed under the GreenSock Standard "No Charge" License. This licence permits use in projects that do not charge end users a fee specifically for the use of GSAP. The full licence terms are available at [gsap.com/standard-license](https://gsap.com/standard-license).

| Component     | Version | Copyright         |
| ------------- | ------- | ----------------- |
| gsap          | 3.x     | © GreenSock, Inc. |
| ScrollTrigger | 3.x     | © GreenSock, Inc. |

### 6.2 Mapbox GL JS

Mapbox GL JS is **not** open source. It is distributed under the Mapbox Terms of Service. Use of Mapbox GL JS within PropOps Web is subject to Mapbox's own licensing terms, available at [mapbox.com/legal/tos](https://www.mapbox.com/legal/tos).

***

## 7. Obtaining Source Code

For any open source component distributed under a licence that requires source code availability (including LGPL-3.0), the corresponding source code can be obtained from the package's public repository. Links to each project's source repository are available through the package registries:

* **npm**: [npmjs.com](https://www.npmjs.com) (JavaScript packages)
* **Packagist**: [packagist.org](https://packagist.org) (PHP packages)

If you require assistance obtaining source code for any component listed above, please contact [support@propops.app](mailto:support@propops.app).

***

## 8. Updates

This page is updated when PropOps Web adds, removes, or updates third-party open source dependencies. The version numbers listed reflect the major version series included at the time of the last update and may not correspond to the exact version in every release.