# Licensing

The AgiMate backend (agimate-backend) is **Fair Source**. The source is public, free for almost
everything, and every release becomes Apache-2.0 two years after it ships, automatically and
irrevocably: the grant is in the licence text, so it holds whatever we decide later. The one
exception in the meantime is named below. This page is a plain-language summary; the binding
text is [LICENSE](LICENSE).

## What applies

Everything released from **v0.5.0** onwards is licensed under the
[Functional Source License 1.1 with an Apache-2.0 future licence](LICENSE) (`FSL-1.1-ALv2`).

Releases **up to and including v0.4.0 remain Apache-2.0** and always will — see
[LICENSE-APACHE-2.0](LICENSE-APACHE-2.0). A licence already granted cannot be withdrawn.

## What you may do, free of charge

- Run AgiMate for yourself or inside your company, including for commercial work, on any number
  of machines, with any number of users of your own.
- Read, modify, fork and redistribute the source, as long as the licence travels with it.
- Use it for education and for research.
- Provide professional services — setup, integration, support — to someone who is themselves
  running AgiMate under this licence.

## What needs a licence from us

Making AgiMate available to others as a commercial product or service: hosting it for third
parties, reselling it, or shipping a product with substantially the same functionality. The
licence calls this a *Competing Use*.

If that is what you want to do, it is not forbidden — it is negotiable. Write to
**easmithpub@mail.ru** and describe what you have in mind.

## Every release becomes Apache-2.0

Two years after a version is published, that version is additionally licensed under
Apache-2.0, automatically and irrevocably. The grant is in the licence text itself, so it does
not depend on us still being around or still agreeing. In practice the restriction applies only
to what is current.

## Contributions

Contributors keep ownership of their work and sign a [CLA](CLA.md) once, which lets the project
be distributed under both this licence and commercial terms. See [CONTRIBUTING.md](CONTRIBUTING.md).

## The name

The licence covers the code, not the brand. "AgiMate" and the AgiMate logo are not licensed for
use in your own product or service names; identifying us as the origin of the software is of
course fine.