This document provides instructions on how to become a Tizen committer. It outlines the Tizen source code repositories, how to clone the code and modify bugs. It describes using the Git Build System and OBS Build tools. The roles of developers, maintainers, reviewers, and release engineers in the process are defined. The steps to submit a patch for review via Gerrit and the review process are covered. Resources for practicing the process like sample repositories are provided.