# Development ## Outside of docs - [CONTRIBUTING.md](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md) main contributing guide - [PROCESS.md](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/PROCESS.md) contributing process - [GitLab Development Kit (GDK)](https://gitlab.com/gitlab-org/gitlab-development-kit) to install a development version ## Styleguides - [Documentation styleguide](development/doc_styleguide.md) Use this styleguide if you are contributing to documentation. - [Migration Style Guide](migration_style_guide.md) for creating safe migrations - [Testing standards and style guidelines](testing.md) - [UI guide](ui_guide.md) for building GitLab with existing css styles and elements - [SQL guidelines](sql.md) for SQL guidelines ## Process - [Code review guidelines](code_review.md) for reviewing code and having code reviewed. ## Backend howtos - [Architecture](architecture.md) of GitLab - [CI setup](ci_setup.md) for testing GitLab - [Gotchas](gotchas.md) to avoid - [How to dump production data to staging](db_dump.md) - [Instrumentation](instrumentation.md) - [Performance guidelines](performance.md) - [Rake tasks](rake_tasks.md) for development - [Shell commands](shell_commands.md) in the GitLab codebase - [Sidekiq debugging](sidekiq_debugging.md) - [What requires downtime?](what_requires_downtime.md) ## Compliance - [Licensing](licensing.md) for ensuring license compliance