CircleCI is currently very tied down to per-project configuration / jobs.

There are ways to pull and work with multiple repositories, but it's not first-class and requires a lot of hacking and configuration (e.g., picking a parent repo, setting up SSH keys to access other repos, making API calls etc.).

Would be nice to support multi-project orchestration for testing microservices apps.

In particular, not just the functionality, but also the ability to visualize multi-project pipelines, how they depend on or affect each other, etc., would be extremely useful.

CCI-I-1138