I was looking at [Koka](https://github.com/koka-lang/koka) and it also has [ref-counted memory management](https://koka-lang.github.io/koka/doc/book.html#why-perceus) . Was any of `arc` inspired by it? If not there might be good ideas in there. Conversely maybe `arc` beats it in which case it would be good to port those ideas to what looks like a nice functional language. :)
- Perceus: Optimized Ref Counting For Koka deech
