2. UnicodeUnicode normalization library. (Mirror of Yoshida-san's code base to maintain the RubyGem.)
3. BriceExtra cool IRb goodness for the masses.
4. NuggetsSome extensions to the Ruby programming language.
5. rb-gslRuby interface to the GNU Scientific Library [Ruby 2.x and GSL 1.16 compatible fork of the gsl gem]