If you're looking to Download Ruby Runner on your Chromebook laptop Then read the following guideline.

Write and run Ruby code instantly! Ruby Runner is a handy tool for learning Ruby and running Ruby scripts for daily tasks. Simply type Ruby code and press "Command-R" to run it, that is all! You don't event need to save the file first! * Features • Type and run Ruby code instantly • Display output as plain text or HTML • Supports CLI interaction (text output mode) • Syntax highlighting • Auto completion • Various themes Ruby Runner is simple and quick. You can use it for daily tasks such as text processing, code generation or simply type some code to verify your ideas.