Currently, we have a lot of reusable steps we use in our Jenkinsfiles like so:

pipeline {
  stages {
    stage('Build') {
      steps {
        reusableBuild()
      }
    }
    stage('Test') {
      steps {
        reusableTest()
      }
    }
  } 
}

I feel it is very repetitive to always replicate the stage definition - the way I look at this, these should be reusable as well. A pipeline would then simply consist of reusable, composable stages:

pipeline {
  stages {
    reusableBuild()
    reusableTest()
    stage 'Something individual' {
      steps {
        echo 'only for this project'
      }
    }
  } 
}

Maybe this is already possible, but at the moment I have no idea how to define reusable stages in a shared library - any hint would be very much appreciated. I would also be willing to provide a PR, if only I had an idea which code to touch