References https://atscaleconference.com/videos/scale-2019-amazon-dynamodb-fast-and-flexible-nosql-database-service-for-any-scale/ https://www.youtube.com/watch?v=yvBR71D0nAQ https://pages.awscloud.com/Deep-Dive-on-Multi-Region-Architectures-with-Amazon-DynamoDB_2021_0427-DAT_OD.html