mruby-uuid Uuid class install by mrbgems add conf.gem line to build_config.rb MRuby::Build.new do |conf| # ... (snip) ... conf.gem :github => 'kjunichi/mruby-uuid' end example p Uuid.uuid #=> "f557e3a6-c3a8-4862-8e13-1d17f2d3e87e" License under the MIT License: see LICENSE file