https://heystack.xyz doesn't work

So because I'm trying to figure out what is up with #39
I figured I could just actually use the sample app at https://heystack.xyz to help debug and make sure I've got the proper Clarity.

However the site app example appears to refer to contract on `regtest` network that is no longer present.

Not sure what else I can deduce aside from that
I suspect the contract that was deployed to `regtest` to work in unison with your web app differs slightly from what the repo shows as the clarity contracts.