Oh, I already wrote code to handle the sharing of entities between Parrot-hosted languages and Perl 5 (the hard part was walking between the two very different memory management strategies of garbage collection and reference counting). I'm sure that code's been lost to one of the annual purges, however. I have no desire to rewrite working code for the sake of P6's current implementation fad—but good luck doing that in a cross-platform way in NQP, or handling internal encoding and decoding in an efficient way, or dealing with system calls, or managing library paths, for example.