Build After Dark — San Francisco

Build After Dark (Apr 15, 2026) is an evening hack-and-demo social for founders and engineers in San Francisco to ship projects, show prototypes, and meet collaborators. The event focuses on rapid-build culture: short demos, peer feedback, and informal investor/founder networking. Attendees include early-stage startup teams, product builders, and technical co-founder seekers. The night is suited to founders wanting feedback, recruiting early contributors, or showcasing an MVP to local builders and angel investors in a casual, demo-first format.