A pure Ratpack edition. You will find lots of links to understand better the Ratpack toolkit.
Discover Grails 3 development and deployment tricks and Groovy on Android lazybones templates.
Use Grails to build REST-API, learn about Spock test-ordering, groovy compile-static and discover ngrok
Spring Security Plugin for Grails 3 and more nice content from the GR8Conf-US.
A lot of GR8Conf US material; Spock, Geb and yes microservices.
Spock, Geb, Android and great training material
Groovy Dev Weekly renamed to Groovy Calamari. Grails 3 Events, Groovy SQL, Gradle, Puppet and sshoogr
The GR8Conf Issue; Spock Examples, How to do functional tests with Geb, Groovy on Android, Groovy State of the union ...
Gradle for Android, Groovy on Android and Grails 3 Testing.
Great video links, Gradle tips to improve your Android projects, Grails async and Groovy tips.