How can I contribute?
The How To Contribute section of the Gerrit documentation tells you all you need to know about developer setup, CLAs, how to propose new features to the community etc.
Where do I start?
If you want to contribute to the Gerrit community, but don’t know were to start, there is a set of well defined Bugs and Feature Requests of various sizes in the Help Wanted hotlist in the issue-tracker. Just pick any of these issues that seem interesting, assign it to yourself and start.
If you want you can present yourself to the community and announce that you have started working on the issue in any of the community forums. This will provide some context for the community if (when) you have additional questions or issues.