Blaze is a new Git-based hybrid CMS and PaaS that allows users to:
1. Create headless CMS projects that expose data via REST and GraphQL APIs.
2. Programmatically add, update, and delete content via these APIs.
3. Generate forms using a GUI and process submissions with Serverless functions.
4. Attach Serverless functions to content create/update/delete hooks.
5. Deploy projects to external PaaS providers like Netlify, GitHub, and CDNs.
The presentation demonstrated creating a Blaze project, registering for early beta access, and the features planned for the early beta release.