web app SaaS

I'm building a web app SAAS application. The app concept is you paste any link into a text box then the analy the video and why it went viral then it spits out the entire transcript and details And there's a remake button which means you can remake video in your own style It's super simple and I have a whole HTML file front end example. The big thing is I just need a back end developer and I would love to see what you can do!