Part 5 of the "Coffee on Couchbase" series focuses on developing a NetBeans plugin for Couchbase, with discussions led by Geertjan Wielenga and Eben Haber. The episode showcases newly created features in the plugin and demonstrates how to display different icons for indexed and non-indexed buckets in Couchbase. The ongoing code development can be accessed on GitHub at arun-gupta/couchbase-netbeans-plugin, and the NetBeans plugin module file from this episode is available for use. The series encourages community engagement by inviting feedback on desired features and sharing snapshots on social media using #NetBeans and #Couchbase.