This is a very neat proof of concept that the problem is solvable entirely in safe rust. Obviously the ergonomics suffer, but its an interesting datapoint, and one can hope that future rust developments will mitigate some of the papercuts

Given your nick, one of the points of 2026 roadmap is exactly trying to make Rust more Swift like, or any other language with RC as automatic resource mechanism for that matter, removing the .clone() pain.

Or the experiements Niko Matsakis is doing with Dada.