Deploying a Flask application using AWS ECS and DynamoDB is simplified and scalable.The application includes APIs for saving user data and retrieving hello messages.Requirements include Docker, Terraform, Python 3.8+, Flask 2.0+, SQLite3, AWS account, DynamoDB.Deployment architecture involves AWS ECS, DynamoDB, S3, CloudWatch, and GitHub Actions.Local scripts, Terraform code, and provider configuration are used for deployment.To run and test locally: install dependencies, run the application, and test APIs using curl or Postman.Deployment into AWS ECS involves setting up CI/CD with GitHub Actions and Terraform.Terraform files define AWS provider, variables, ECS configurations, and outputs.Deployment steps include initializing Terraform, planning, applying the configuration, and verifying deployment.The application includes APIs for saving user data and retrieving hello messages.