OpenAI Build Week Online Join a global week of building with Codex $100,000 in prizes Winners announced 46665 participants
DeerHacks V (2026) Mississauga, Canada DeerHacks V celebrates 5 years of innovation and collaboration! Join us for 36 hours of coding and problem-solving as we mark half a decade of hacking brilliance on Feb 27 - Mar 1! Non-monetary prizes Feb 27 – Mar 1, 2026 164 participants
