By "built on Go" I meant like Java: you can use Go libraries and compile it as you would compile Go code, to a single binary.

I see! "Built on X" would usually refer to what language something is built in, while what you're talking about is "interoperability" with the host language.

But yeah, unfortunately Joker doesn't do interop, which is sad because it's one of the coolest features of the Clojure language.