I so I wanted to build this app with NextJS where a user can drag in blocks, paste youtube links and then multiple youtube video's information could be fused to create a detailed summary on the topic

The app idea in design form is attached as an image

So to summarise it all into questions :

- Is there a library or tool I could use to make this sort of whiteboard style app in NextJS ?
- Is there a solid way of getting youtube video transcripts from the video URLs ?