Copilot is great! But, it's intentionally only about ECS and a single service. Whereas Digger is operating at the entire stack level, and will support a variety of deployment targets, including other AWS services, other cloud providers eg Google Cloud Run, Kubernetes etc. ECS is just the first one supported.

With Digger we want to create a convenience layer to manage cloud infrastructure that will bridge the gap between paas that has great UX but quickly gets expensive and limiting, and major clouds that are cheaper and more flexible, but hard to figure.