How to display videos in Insta clone using external links/API from Cloudflare?

I’m building an app that’s very similar to Instagram (people post images and videos for others to see). Instead of hosting videos in Bubble, I’ll be hosting them in Cloudflare. My questions are:

  1. How to build the post feature to play videos hosted in cloudflare, not in Bubble database?

  2. How to make videos autoplay when the user scrolls down to each video post?

  3. How to build a workflow where videos uploaded by people are going to cloudflare instead of being uploaded to Bubble database?

Thank you!