As a newcomer, I want sensible defaults. I want a Rails. Let me wait to learn the knobs and dials when I’ve got enough base knowledge to evaluate them fairly.
https://github.com/plexus/chestnut is Clojurescript, but it's fantastic. It's quite easy to roll out a UI and you can build your backend to your specifications. A bit less opinionated than Luminus, but both great for just getting started.