File hosting is an extremely messy business. I don't see any DMCA/abuse reporting mechanism on the site. You need those, and as you scale up, you're also going to need full-time staff whose only job is to wade through uploads and prevent abuse. (No, AI alone can't do that.) Firefox Send had to shut down after becoming a massive malware/phishing distribution center, and that was
with full-time staff in that role [1]. Obviously writing a service like this is trivial; keeping it running safely is the hard part.
Considering that your other business is an open, unauthenticated CORS proxy service [2], I have to wonder why you've picked two of the very messiest niches.
[1]: https://en.wikipedia.org/wiki/Firefox_Send
[2]: https://corsproxy.io/
