How do I go about debugging that binaryage/devtools.preload is not preloaded even though it's in [:profiles :dev :cljsbuild :builds :app :compiler :preloads] where app is the only build available? Where do I start?

If I manually (require 'devtools.core) I can run (devtools.core/install!) and get the hints in the console.

@rovanion you should be using pretty recent version of ClojureScript, :preloads is a new thing