Instead of reference counting, consider having two types. An "owner" type which actually contains the resource and the destructor to dequire the resource. And "lender" types which contain a reference (a pointer or just logically (e.g., an fd can just be copied into the lender but only closed by the owner) to the resource which don't dequire on destruction.
Same thing as what Rust does with `String` and `str`.
Same thing as what Rust does with `String` and `str`.