Zach Holman invites people to join him and @kneath at Steel Cactus Authentic Mexican Restaurante & Cantina in Shadyside for the first Steel City drinkup, focusing on GitHub. The event is scheduled for Thursday, February 28, at 8:00 PM, with the upper roof deck reserved for attendees. Participants are encouraged to bring a friend and enjoy complimentary beers while engaging in discussions related to GitHub.