What to do after environment setup?

Hi. So this is the most basic question, but after getting the environment setup, how do I actually run and test code? Do I enter code on atom? in the terminal? how do I run it after I enter it?

I’m tempted to just open a repl.it like in jumpstart, but I’m thinking I should figure out how to use Atom and terminal.

You edit your code in Atom. And run the tests using Terminal. On terminal you need to navigate into the folder that contains your exercise. Then run: bundle install. To run the specs you run : bundle exec rspec . Read the errors and then edit your code in Atom accordingly.