This document provides an overview of Hacktoberfest and open source contributions. It discusses that Hacktoberfest is an annual event that encourages collaboration and learning in open source software. The agenda outlines what open source is, how to get started with contributions through version control systems and repositories, and how to participate in Hacktoberfest by registering online and finding projects to contribute to. Guidelines and a Q&A session are also included to help participants successfully contribute to open source projects.