Effective development with AWS Lambda Layers using gradle for Java, for a Spring Boot App

I'm wanting to speed up my Lambda development productivity. My desired end state is to split my development process up into 2 different builds:

• Lambda Layer Build - builds my Lambda Layer which contains all dependencies of my project
• Application Code - the actual application without all the dependencies

I'm happy to make use of serverless framework integration with Lambdas, but I'm still having problems figuring out how to get gradle of instead of building a FatJar, to have one folder/jar containing all dependencies, and one of only my application code.

I've tried this tutorial here which does something like:

task buildZip(type: Zip) {
    baseName = "aws-java-github-webhook-gitstats"
    from compileJava
    from processResources
//    into('lib') {
//        from configurations.runtime
//    }
}


task buildLayer(type: Copy) {
    into "$buildDir/layer/java/lib"
    from configurations.runtime
}

But I think the spring-dependency plugin is messing that approach up, (I am using spring-boot). Does anyone have a nice configuration setup to do this which I could leverage?