Some possibly relevant works: Pony has a separate GC for every actor. I suspect that in practice, these work a lot like arenas; since they're very short lived,

Some possibly relevant works: Pony has a separate GC for every actor. I suspect that in practice, these work a lot like arenas; since they're very short lived, I'd imagine that most actors just allocate a lot and then blast it away. [0] Odin (not GC'd) has an implicit "context" that has an allocator, [1] effectively decoupling the allocator from the code. One could use an arena allocator for any function they'd like. Vale (not GC'd) is taking this the context system bit further and makes it memory safe. [2] [0] https://tutorial.ponylang.io/appendices/garbage-collection.html https://tutorial.ponylang.io/appendices/garbage-collection.h... [1] https://odin-lang.org/docs/overview/#allocators https://odin-lang.org/docs/overview/#allocators [2] https://verdagon.dev/blog/zero-cost-refs-regions https://verdagon.dev/blog/zero-cost-refs-regions