When you will open RubyMine for the very first time you can set the working directory where you can save all your settings and projects. You can also select the keymap and suggest a color scheme of your liking. It displays a Welcome screen which will let you select different options which will best suit all your requirements. You can either create a new project or resume working on an existing project. In the new project you can easily add new Ruby classes, HTML files and Testunit Test templates. Additionally it brings RoR project structure views and let you instantly debug and test your scripts within no time. You may also be interested in downloading JBuilder 6.
https://getintopc.digital/rubymine-free-download-v1/