# Licence

- SPDX-Licence-Identifier: [Apache-2.0][apache-2]

Enviable is copyright © 2024–2025 Austin Ziegler and is licensed under the
[Apache License, version 2.0](licences/APACHE-2.0.txt). Portions of Enviable are
adapted from the `System` module in [Elixir][elixir].

## 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
```

[apache-2]: https://spdx.org/licenses/Apache-2.0.html
[elixir]: https://github.com/elixir-lang/elixir
[trailer]: https://git-scm.com/docs/git-interpret-trailers