# Contributing Kimai is an open source project, contributions made by the community are welcome. But we can only accept contributions with a signed CLA (Contributor License Agreement) to prevent issues in the future (you will see a link when opening a PR). Send your ideas, code reviews, pull requests and feature requests to help to improve this project. ## Pull request rules - Make your changes in a new git branch, based on the latest code in `main` - Apply our code-style by running `composer codestyle-fix` - Run the static code analysis with `composer phpstan` - Verify everything still works with `composer tests-unit` - Add tests for your changes Further documentation can be found in the [developer documentation](https://www.kimai.org/documentation/developers.html).