Ok, I've added a feature request in Github
Dear Calva friends. I just released a version of Calva that has the Fire up a Getting Started REPL enabled. The Clojure Beginner’s Guide there is by no means, and not even close to, finished in a v1
manner. But I felt the feature and the guide was a bit too hard to test with it being a dev-only feature. This way I can get feedback from more people and make the guide better than it otherwise would get. Please see https://calva.io/getting-started/