The Game Developers Conference (GDC), a major event for gaming professionals, will be held in San Francisco, where GitHub will be present with their "Octobooth" from March 7th to 9th, offering attendees the chance to collect GitHub swag. Additionally, GitHub is holding a contest to win free expo passes, inviting participants to comment on their favorite game-related repositories on GitHub and explain their significance or use. Entries for the contest are open until March 4th, with winners announced on March 5th, and participants must be over 18 and able to collect their passes in person at GitHub's San Francisco office. Lee Reilly, a Senior Program Manager at GitHub, authored this announcement, highlighting his roles in developer relations and community support.