For me, the most interesting one is Josephine[1]. This allows tracking of stack roots, doesn't limit the time when GC can run, and takes advantage of rust's aff

For me, the most interesting one is Josephine[1]. This allows tracking of stack roots, doesn't limit the time when GC can run, and takes advantage of rust's affine type system. However I have to say the API feels fairly clunky, with the need to root everything before mutation and the need to pass context objects to every method. [1] https://github.com/asajeffrey/josephine https://github.com/asajeffrey/josephine