GEM

A package management system and distribution mechanism for Ruby programming language. Readers can explore RubyGems, gem installation, dependency management, and gem development best practices. This includes understanding RubyGems repository for hosting and sharing Ruby libraries and applications, using gem command-line tool for searching, installing, and managing gems, managing gem dependencies and versions in Ruby projects, and contributing to open-source projects by creating and publishing gems to RubyGems repository.