The official Supabase Hackathon is scheduled to take place from December 9th to December 19th, with a focus on building new Open Source projects using Supabase. Participants have 10 days to create their project, which can be any type of project, app, tool, library, or anything. The hackathon offers several prizes, including $1500 in GitHub sponsorships and an official Supabase Keyboard for the winning team, as well as swag kits for the most fun/interesting, best Flutter project, and best storage project. The hackathon will be judged by both Supabase and Deno teams, with a focus on creativity, functionality, and use of Supabase features. Teams can submit their projects using a specific form, and the event will feature live building by the Supabase team in their Discord channel.