Here I'll quickly explain how you can modify the behavior of each and every Netzke component at the client side.
Specs for Netzke Core have been rewritten to make use of Mocha and CoffeeScript. Here I'll briefly show what I did, so you could consider this setup for testing your own Ext JS + Rails applications.
On the continuation of the popular tutorial teaching you how to set up a CRUD web app in 7 minutes, I'll show you how easy it is to nest existing Netzke components in a tab panel.
Build a Ruby on Rails and Sencha Ext JS task manager web application in no time.
Netzke is moving towards a significant update, and here's a little high-level write-up on what I'm planning for the release.