1. Openpgp.rb[Retired] OpenPGP.rb is a pure-Ruby implementation of the OpenPGP Message Format (RFC 4880).
2. Tor.rbTor.rb is a Ruby library for interacting with the Tor anonymity network.
4. ebnfEBNF parser and generic parser generator for Ruby.
5. crm114.rb[Retired] Ruby interface to the CRM114 Controllable Regex Mutilator.
6. sxp.rbA universal S-expression parser for Ruby.
7. php.rb[Retired] PHP.rb translates Ruby code into PHP code.
8. bitcache[Retired] Distributed, content-addressable storage system.