# Development

Kustosz is open source application, distributed under terms of [European Union Public Licence](https://joinup.ec.europa.eu/collection/eupl/eupl-text-eupl-12). We welcome all kids of contributions, including code changes, reporting bugs, improving documentation and translating user-interface. Click one of the links below for more details and instructions.

:::{toctree}
:maxdepth: 1

development/backend
development/frontend
development/documentation
development/website
development/installer
development/release-policy
:::