# Licence

- SPDX-License-Identifier: [MIT][mit]

- Copyright 2005-2025 Austin Ziegler, Matt Lyon, and other contributors.

The software in this repository is made available under the MIT license.

## MIT License

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 names of its contributors may not be used to endorse or promote products
  derived from this software without specific prior written permission.

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.

## Developer Certificate of Origin

All contributors **must** certify they are willing and able to provide their
contributions under the terms of this project's licences with the certification
of the [Developer Certificate of Origin (Version 1.1)](licences/dco.txt).

Such certification is provided by ensuring that a `Signed-off-by`
[commit trailer][trailer] is present on every commit:

    Signed-off-by: FirstName LastName <email@example.org>

The `Signed-off-by` trailer can be automatically added by git with the `-s` or
`--signoff` option on `git commit`:

```sh
git commit --signoff
```

[mit]: https://spdx.org/licenses/MIT.html
[trailer]: https://git-scm.com/docs/git-interpret-trailers
