Easy file attachment management for ActiveRecord

🚫 Stop saying "you forgot to …" in code review (in Ruby)

Use Webpack to manage app-like JavaScript modules in Rails

A shell console with GUI features

Bundler-like DSL + rake tasks for Bower on Rails

The RSpec syntax converter

Create a virtual X screen from Ruby, record videos and take screenshots.

A pure Ruby HTML5-compliant parser with CSS selector and XPath 1.0 traversal

Slackまとめ

React on Sinatra Integration, Server Side Rendering

顔文字サイト

Supports named routes and makes it easy to access to URI path