- Architecture of GitLab
- CI setup for testing GitLab
- Code review guidelines for reviewing code and having code reviewed.
- Gotchas to avoid
- How to dump production data to staging
- Instrumentation
- Migration Style Guide for creating safe migrations
- Rake tasks for development
- Shell commands in the GitLab codebase
- Sidekiq debugging
- SQL guidelines for SQL guidelines
- Testing standards and style guidelines
- UI guide for building GitLab with existing css styles and elements