I just discovered bunny.net thanks to this post. I'd be happy to move my static websites on bunny.net, but is it possible (like on cloudflare) to map requests to /foo to the foo.html file ? According to what I read on the documentation it is not a edge rule.

Pardon my ignorance but am curious what is an "edge rule"? Is it a tech-related term (i.e. edge case) or a figure of speech?

"Edge" was the new "client", now it's everything outside your own servers, or at the border between your server and everyone else.

See also: Edge Computing