I wonder whether this is something built on top of either ECL or Gambit-C, or something completely new? I'm certainly interested to find out more. ATM Gambit-C

I wonder whether this is something built on top of either ECL or Gambit-C, or something completely new? I'm certainly interested to find out more. ATM Gambit-C is top of my list of "alternatives for Lisp on iOS & Android".