GitHub Universe is a two-day event held on October 1st and 2nd at Pier 70 in San Francisco, designed to unite the GitHub community through sessions focused on building, collaborating, and deploying software. The event features keynotes, including one from GitHub Co-founder and CEO Chris Wanstrath, as well as sessions led by industry leaders, GitHub engineers, and organizations like NASA and Mozilla, offering insights into technical deep-dives, best practices, and case studies. Tickets are initially priced at $399, with a price increase slated for September 1st, and there's an opportunity to purchase scholarship tickets for individuals from underrepresented communities. Attendees from out of town are encouraged to book discounted rooms at the W San Francisco before the offer ends on September 11th. GitHub Universe is described as both a festival and a conference, emphasizing the community aspect of software development beyond just coding.