Does Wisp have any facility for namespaces - I didn't see anything about that in the link?

It appears like it does: https://github.com/Gozala/try-wisp/blob/gh-pages/src/main.wi...

They have being added recently and more clojure compatibility is planned for the future.

Worth reading for the second half of the article which argues that streaming services are "divorced from music" and not financially helpful to musicians.

I use Vim and did get something similar setup for ClojureScript. I used a lein repl running in Gnu Screen and sent clojurescript from Vim to the browser based repl using vim-slime https://github.com/jpalardy/vim-slime. It worked very well.

I would recommend a previous episode (167) with the founders of Kaggle - very interesting.

I found http://railslab.newrelic.com/scaling-rails very useful - its a series of short, informative videos about scaling rails and web-apps in general.