CDK APIs in JavaScript are very nice. It's a much much developer experience than Pulumi/Terra form and even Server less Framework. In our monorepo each service is in a separate folder with a folder called /infrastructure inside with a file called Stack.js that defines all the resources needed. When starting a new service we just copy one of the last similar services that we developed. We are able to deploy a new service in hours. Services are getting better and better with accumulation of nice to have features that you wouldn't have time to add to most services.