[1] Setup

Add it in your root build.gradle at the end of repositories:

 buildscript {
    repositories {
        maven { url 'https://jitpack.io' }
    }
  }
  ...
  allprojects {
    repositories {
	maven { url 'https://jitpack.io' }
    }
  }

Add gradle dependency

  implementation "com.github.SchwarzIT.crystal-map:crystal-map-api:$latest_version"
  kapt 'com.github.SchwarzIT.crystal-map:crystal-map-processor:${latest_version}'
  //optional CouchbaseLite Connector
  implementation "com.github.SchwarzIT.crystal-map:crystal-map-couchbase-connector:${latest_version}@aar"