Have you tried using Cider under Emacs? Or Cursive? Both of those have debuggers that allow you to add a breakpoint in your code and then evaluate arbitrary exp

Have you tried using Cider under Emacs? Or Cursive? Both of those have debuggers that allow you to add a breakpoint in your code and then evaluate arbitrary expressions. They also allow you to step through each form and see the return value. There are also a few projects for adding in debug REPLs, but those seem to have fallen by the wayside lately, perhaps supplanted by debuggers. You might also want to talk a look at Duct (https://github.com/weavejester/duct https://github.com/weavejester/duct), which is my ongoing and still early attempt at solving some of the framework problems with Clojure. If you create a template via Duct, like so: lein new duct foobar +site +cljs Then you some of the things you're asking for. The namespaces of your application are loaded when you start `lein repl`. You get a `(reset)` function that reloads your code, restarts your application and pushes those changes dynamically to the browser. You also get a ClojureScript REPL that hooks into the browser. There are also generators, migrations, database support etc., but currently all inferior to Rails. I'm probably going to be working on the generators next, as they need attention.