It's probably not ready for prime time - past it's initial use cases it hasn't been tested much. Things like sh.py and jash are a really neat solution for some problems.
I was hoping for a Node.js alternative. One question, have you thought about using https://github.com/samshull/node-proxy instead of searching through the environment to find binaries? Using .get() you would only need to identify programs that are requested, rather than knowing them all up front.
http://www.github.com/gameclosure/jash
It's probably not ready for prime time - past it's initial use cases it hasn't been tested much. Things like sh.py and jash are a really neat solution for some problems.