Get Your Shirt FAQ Find a Project Get Your Shirt FAQ Find a Project Printed with soft-hand inks on pre-shrunk, tri-blend shirts. Earn a Limited-Edition T-Shirt. Hacktoberfest is a month-long celebration of open source software in partnership with GitHub. Here is how you can participate: Enter your GitHub username and email address in the form below. Open four pull requests on any GitHub-hosted open source project(s) of your choice by October 31st. After the month is over, we’ll collect your shipping information and send you a free shirt! We will be following up with you on November 1st to see how you did with your 4 pull requests. Here’s what you can do in the meantime: Share Hacktoberfest with your friends Check out these resources put together by DigitalOcean Technical Writer, Erika Hei...