Web Reference: Creating and publishing your own gem is simple thanks to the tools baked right into RubyGems. Let’s make a simple “hello world” gem, and feel free to play along at home! Ruby gems are the backbone of the Ruby ecosystem. Whether you are building a web application with Rails, writing a command-line tool, or automating infrastructure, you will rely on Ruby gems to avoid reinventing the wheel. This comprehensive guide covers everything you need to know about RubyGems — from installing your first gem to creating and publishing your own. Mar 20, 2026 · This tutorial shows how to create a simple Ruby gem in RubyMine and publish it to RubyGems.org. Before you start: Install Git. Register your GitHub account in RubyMine. Install the Ruby distribution for your platform.
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