Thanks for pointing this out. To be frank, I would not have expected to see someone highly competent attempting to build a core product with Raku, let alone what looks to be an not entirely trivial compiler. I didn't realize that in addition to being a luajit expert agentzh is also a long-time perl hacker.
Amusingly though he found it necessary to write his own proprietary implementation of (a "dialect" of?) Raku, compiling to luajit byte code.