ClickHouse is an open project, and you can contribute to it in many ways. You can help with ideas, code, or documentation. We appreciate any efforts that help us to make the project better.
We have a [developer's guide](https://clickhouse.yandex/docs/en/development/developer_instruction/) for writing code for ClickHouse. Besides this guide, you can find [Overview of ClickHouse Architecture](https://clickhouse.yandex/docs/en/development/architecture/) and instructions on how to build ClickHouse in different environments.
If you want to contribute to documentation, read the [Contributing to ClickHouse Documentation](docs/README.md) guide.
In order for us (YANDEX LLC) to accept patches and other contributions from you, you will have to adopt our Yandex Contributor License Agreement (the "**CLA**"). The current version of the CLA you may find here:
If you agree with these principles, please read and adopt our CLA. By providing us your contributions, you hereby declare that you have already read and adopt our CLA, and we may freely merge your contributions with our corresponding open source project and use it in further in accordance with terms and conditions of the CLA.
If you have already adopted terms and conditions of the CLA, you are able to provide your contributes. When you submit your pull request, please add the following information into it:
```
I hereby agree to the terms of the CLA available at: [link].
```
Replace the bracketed text as follows:
* [link] is the link at the current version of the CLA (you may add here a link https://yandex.ru/legal/cla/?lang=en (in English) or a link https://yandex.ru/legal/cla/?lang=ru (in Russian).
