Design the CDK application to read AWS CloudFormation parameters for the values that vary across environments and Regions. Reference these variables in the CDK stack for resources that require the variables.

Design the CDK application to read environment variables that contain account and Region details at runtime. Use these variables as properties of the CDK stack. Use context methods in the CDK stack to retrieve variable values.

Create a dedicated account for shared application services in the multi-account environment. Deploy a CDK pipeline to the dedicated account. Create stages in the pipeline that deploy the CDK application across different environments and Regions.

Write a script that automates the deployment of the CDK application across multiple environments and Regions. Distribute the script to engineers who are working on the project.

Use the CDK toolkit locally to deploy stacks to each environment and Region. Use the --context flag to pass in variables that the CDK application can reference at runtime.