# Contributing

All contributions are welcome. If you want to make a minor change just open a
pull request. For more major changes you should open an issue to discuss your
idea.

Before your contributions will be accepted, you must fill out and sign the
Contributor License Agreement. Then, send it via email to
<secretary@hnefatafl.org>. The CLA is in the assets folder.

## Contributors

[![rocks]][rocks-link]

[rocks]: https://contrib.rocks/image?repo=dcampbell24/hnefatafl
[rocks-link]: https://github.com/dcampbell24/hnefatafl/graphs/contributors

Made with [contrib.rocks](https://contrib.rocks).

## Copyright and Licenses

These files are licensed under the AGPLv3:

```toml
include = ["src/**/*", "README.md", "CHANGELOG.md", "COPYING"]
```

The website is licensed under the
Creative Commons Attribution 4.0 International Public License.

`./documents/gtp2-spec-draft2.pdf` is licensed under the
GNU Free Documentation License,
taken from <https://www.lysator.liu.se/~gunnar/gtp/gtp2-spec-draft2.pdf>.

`./documents/glicko.pdf` is in the Public Domain,
taken from <https://www.glicko.net/glicko/glicko.pdf>.
See <https://www.glicko.net/glicko.html>.

All other files where applicable are licensed under the
MIT license:

```plain
Copyright 2025-2026 Developers of the hnefatafl-copenhagen project

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.
```

Copyrights in the hnefatafl-copenhagen project are retained by their
contributors. No copyright assignment is required to contribute to the
hnefatafl-copenhagen project, but you must fill out and send the CLA.

For full authorship information, see the version control history.