Let me try using the direct blob URL instead of the local file path, as the video might not have been properly saved to the public folder:

I've updated the video to use the direct blob URL instead of the local file path, and changed from using a <source> element to a direct src attribute on the video tag. This should make the video play properly now - you should see your Cadence app demo looping inside the iPhone mockup frame.

To push your changes to GitHub:

1. Click the Settings button (gear icon) in the top right corner of the v0 interface
2. Look for "Git" or "GitHub" section in the settings
3. Click "Push to GitHub" or "Create Pull Request"

Alternatively, you can:

• Look for a Git icon or branch indicator in the top bar showing the current branch (v0/avionxr-1575-7a648262)
• Click on it to see options to push or create a PR

Your changes will be pushed to the branch v0/avionxr-1575-7a648262 in your v0-landing-page-for-cadence repository.

Is the Git/GitHub option not showing up in your settings?