🔧 LocalStack Is Gone. Floci vs. Moto vs. Testcontainers: Which One Replaces It?

On March 23, 2026, LocalStack archived its public GitHub repository and moved all images behind authentication. If you ran docker pull localstack/localstack in CI without a token, your pipeline broke.

The immediate question — "how do I get my CI running again?" — has an answer. The longer question — "what replaces LocalStack for the next two...