Age Mooij shares some tips&tricks for the Scala developer: type aliases, type and class tag, auto-lifted partial functions, nostacktrace, type classes, context bounds, low priority default implicits.
Deepak Giridharagopal discusses "immutable infrastructure", PuppetDB and complex invariants, PuppetDB’s architecture, the experience of bringing Clojure to a Ruby shop and lessons learned from that.
Jamie Allen reviews some of the actor patterns as implemented in Akka and Scala.
Jamie Allen describes three patterns using Akka actors: handling a lack of guaranteed delivery, distributing tasks to worker actors and implementing distributed workers in an Akka cluster.
Jon Neale, Ragnar Dahlen discuss the challenges dealing with large Clojure legacy code at uSwitch.
Renzo Borgatti discusses implementing parallel solutions with reducers in Clojure, doing live coding that show what functional abstractions are involved and why.
Andrew Crump shows how to deploy and scale applications written in a variety of languages (including Clojure and Erlang) to Cloud Foundry.
Baruch Sadogursky discusses creating DSLs which support plugins written both in Groovy or Java, addressing good public API design practices, security, and classpath isolation.
Ramnivas Laddad and Arjen Poutsma discuss the Spring Scala project and its features, demoing a real REST-based application with a Spring and Scala backend and AngularJS frontend.
Andrey Cheptsov explores some of the IntelliJ IDEA’s tricky features helping Groovy&Grails developers to be more productive.
Bobby Warner discusses the features available in Grails 2.3 to build RESTful APIs.