Neo4j now supports AWS Managed Streaming for Kafka (MSK) through MSK Connect, configured as a source and sink with AuraDB Free. The process involves setting up an AWS account, creating an S3 bucket, installing Terraform on the laptop, and using Ed's Terraform module to build the environment for MSK and create sink and source connections between Aura and MSK's topics with the Neo4j Connector for Apache Kafka. The setup includes importing data into AuraDB using a CSV file of cities, their populations, locations, and counties, and then creating a graph that maps nodes with the City label to nodes with a Country label through the relationship LOCATED_IN.