How-To: Learn how to write a Burp Suite extension in Kotlin – Setting up

This tutorial walks through setting up a Kotlin development environment in IntelliJ IDEA, adding the PortSwigger Burp Extender API, creating a minimal IBurpExtender implementation that prints "Hello world" to Burp's output, packaging the addon as a JAR, and loading it into Burp Suite; it is a development how-to and does not describe a security incident.