Do you have some os projects out there to share where you had to do that? Makes me curious, I think the only time I've ended up making a specific data structure in clojure was for a library for perf reasons. In application code basically never.
Specifically it was using GraalVM to interop Clojure on one side with React running on GraalJS on the other. It definitely pushed the limits of what is or even ought to be possible, but at the same time highlighted those very issues. I'll be the first to admit that this is an extreme edge case, but that doesn't take away from the fact that the case is still there.
