Perl6 User's Golfing System (PUGS)
- Started by Autrijus Tang, February 2005
- Parser and compiler written in Haskell
- Quickly became a substantial Perl 6 implementation
- Targets multiple backends (Haskell, C, Parrot, Perl 5, Javascript)
- Currently working towards a self-bootstrapping implementation of Perl 6
- www.pugscode.org