Many people use Ruby in their daily work and hobby projects. Here are some real-world examples of how Ruby is being used.

Web Applications

Ruby on Rails
Ruby on Rails is a full-stack web framework, powering sites like Basecamp, GitHub, Shopify, Airbnb, Twitch, SoundCloud, and many more.
Basecamp
The project management tool that inspired Rails. Built entirely in Ruby.

System Administration

Puppet
An IT automation framework written in Ruby, used for managing infrastructure at scale.
Chef
An infrastructure automation platform built in Ruby.

Scripting and Automation

Ruby's clean syntax makes it ideal for system administration scripts, build automation, text processing, and data transformation tasks.

Development Tools

Rake
Ruby's build program, similar to make. Widely used across the Ruby ecosystem.
RubyGems
The Ruby package manager, written in Ruby.