Hacktoberfest Hack Day Hamirpur × GDG Ludhiana was a high-energy, one-day in-person mini hackathon hosted at NIT Hamirpur as part of Hacktoberfest — the global celebration of open source — in partnership with Major League Hacking (MLH). The event centred on open source and open-weight AI, focusing on models, tools, and agents that anyone can inspect, run, and build upon. Participants formed teams in the morning, built a real-world project from scratch, and demoed it by the afternoon. The event was open to freshers, first-time contributors, students, developers, and designers alike — no prior coding or AI background was required. Attendees enjoyed inclusive beginner and advanced tracks, interactive workshops, expert-led tech talks, prizes, swag, goodies, and hands-on mentorship that helped turn ideas into published GitHub repositories for portfolio growth.