In Git there are high-powered tools for testing and automation that are called hooks. In Badoo we have nearly 100 different self-written hooks. They are used for checking comments, names of branches, code, in fields in Jira tasks, triggering builds and much more. During my talk I will tell you what Git hooks are, why they are needed and how to write and install the easiest hook. In my presentation there will be various examples of our most useful hooks.