The document appears to be a collection of links related to the history and development of the Ruby programming language and its package management system. Some of the links reference early discussions on Ruby's development, an article about Ruby from 1997, and blog posts about changes to how Ruby gems are built and packaged on GitHub.

2. 🎉🎉

16. 🎉🎉🎉🎤

22. https://github.com/takahashim/ruby-history

41. https://groups.google.com/forum/#!msg/fj.sources/bCc2JimcmAo/ONqCnbyG7LMJ

44. https://internet.watch.impress.co.jp/www/article/970922/ruby.htm

79. http://magazine.rubyist.net/?0006-PackageManagement

81. http://magazine.rubyist.net/?0006-PackageManagement

90. https://github.com/blog/515-gem-building-is-defunct

96. https://github.com/blog/515-gem-building-is-defunct