Webpack 5's Module Federation makes creating micro frontends straightforward. It is also available in NextJS 10+ via an experimental feature flag and it makes integrating micro frontends a breeze. You first build an external micro frontend and deploy it as a "federated module" to your destination of choice. Then you update some configs in your NextJS application and Webpack does the rest. It's kind of magic 🦄.
Lerna, AWS CDK, and Github Actions make continuous integration and continuous delivery super easy. I figured out how to setup a CI/CD pipeline for my NextJS static apps backed by additional AWS infrastructure like Lambda functions, API Gateway, and Dynamo DB.