Unless jank rebrands itself as NativeClojure retaining 100% Clojure compatibility with a few more native related goodies, I don't see it offering more than Janet, which is also inspired by Clojure.

Given that they have similar goals, why not merge and join efforts? Would help in softening the rough edges and reducing the bus factor.

Looks like the key difference is that jank is based on persistent data structures, while Janet embraces mutability.

'jank' is a good name then- janky immutable structures sounds flexible and fast, while janky mutable structures sounds like a big mucky headache