I made it to show how easy it is to get started with clj / cljs web development. It uses closp, which covers everyhting from configuration to front / backend work, migration, tests, selenium tests, template generation and so on. Also have a look at the intro: http://closp.net/pages/closp-intro/ which shows how you can get started with 5 commands in the console (given you have leiningen / jdk installed, which would be two more steps, if not).

There is also the possibility to run lein uberjar from the project and get a standalone jar with webserver and compiled clojurescript generated.

Then there is luminus which is somewhat similar and provides much of the same featureset and has a great documentation: http://luminusweb.net

Regarding boot I agree with you, its confusing to have two build tools. It adds some features that leiningen does not provide and for which there was a need. That said, the number one build tool is still leiningen.

Stacktraces are aweful, agreed too, there is no satisfying solution to it that I know.

Well, Go, does it have generics? :D