Nu does not have Ruby-esque syntax. Nu is a full Lisp, complete with macros and first-class functions, and has Objective-C's object system under the hood. It

Nu does not have Ruby-esque syntax. Nu is a full Lisp, complete with macros and first-class functions, and has Objective-C's object system under the hood. It combines those with a few tokens from Ruby, such as the use of the @ symbol, but really, it's an Objective-C/Lisp hybrid first, and anything Ruby-related second. Of the two, F-Script actually has far more in common with Ruby than does Nu, in my humble opinion. (Just to make it clear, the above is not in any way meant to attack Nu. I have used both Nu and F-Script, and prefer Nu. I just think that saying Nu has Ruby-esque syntax would be like saying JavaScript has Scheme-esque syntax. Semantics, maybe. Syntax, no.)