"Want to eliminate the heavy lifting of setting up infrastructure and deploying containerized applications to multiple environments? AWS Copilot CLI lets you build, deploy, and manage your containerized applications with a simple, well-organized set of commands. Then you can focus on application development while the CLI handles nuances of how AWS services integrate and manages all the steps required to deploy a container to the cloud!"
It is CloudFormation under the hood, with open source script CLI generating templates
interesting: it is written in GoLang, not in Python as AWS CLI is.