It's interesting to hear about the twists and turns that got you here, thanks for sharing.

I happen to have built something in the same vein in a few months earlier this summer for the Gemini API developer competition.

For anyone interested, check out Gov Notes (https://app.gov-notes.com)

The site lets you dig into US house committee hearing videos posted to YouTube using AI search and chat. Even have some fairly powerful grounding in the chat - you can ask followups like "when was that discussed in the video?" and the chat will reply with a clickable link to a specific timestamp in the video where your current topic was discussed.