I think this site is a lightning copy of selling sites like [1]  but why did you limit the upload to files only?.
Also, I can create a link without a need to create an account but how long will the link remain active?

There are some additions that I hope to find:

 - The possibility of writing the price in dollars or euros instead of Satoshi.
 - Accept bech32 "starting with bc1" addresses.

Can you review this page?[2] I tried to verify some addresses and did not succeed.
I will try your site later.

[1] https://selly.gg/
[2] https://wesellfiles.com/commandline