Perhaps. But that will become very difficult indeed.

Because in Raku, grammars are just a different way to write code. Grammars are really just specialized classes. And tokens / rules / regexes are just specialized methods. It all compiles down to bytecode, rather than something you can feed a statemachine.

This has several advantages: if a grammar doesn't provide functionality you need, you can write it in Raku code as part of the grammar.

It also means that when you improve execution of the bytecode, you will also improve the performance of grammars and regexes.

Finally: Raku grammars are very powerful. They are used to parse the Raku language itself. Which is a testament to its power. But also brings a whole set of challenges for the core developers :-)