Thanks for this. My plan is to open source it eventually, but I just ran out of time to get it into shape for launch day. I've removed the PR comment so as not to confuse any more people.
The author was on this thread an hour before you posted this clarifying that it is not yet open source, so you could delete that Github issue.
Why not have an issue tracking it? The author will likely close the issue themselves when they open source it.