The first Go program (2013) (opens in new tab)

Yes, but most programming languages are around for a few years before someone tries to use them to implement another language.

I have ~that. Of course it's not Common Lisp though (so, Hubris Lisp?). Notably you have to statically register the Go functions you want to be callable from the Lisp side, because otherwise they might not even be present in the compiled binary (and even if they were, I don't think Go will help you find an arbitrary function by name at runtime). I've used it much more as a normal 'shebang' shell scripting language (even ""webapps"" via CGI) than an embedded one so far... mainly through lack of ideas that call for such a thing.