As a REBOL-refugee, Janet is the first place I've really felt at "home" (although it could totally use a built-in cross-platform declarative GUI...). PEG is great to have handy, and Jester is basically the outcome of a mad evening of "hey... if I did this, then I could also do that..." . I've since learned that there's a complete Janet-syntax PEG here not to mention the `parse` function which just handles a lot of the heavy lifting for me. So, once I finish my next project... there will probably be some new developments.
Thanks for taking a look!