To me, I see yml files as defining configuration for your various environments. Seems like you would want some "global" configuration defined at the root level, with maybe some project specific configuration defined at the project level.

You probably will find this post from @quiet-wolf-18467 helpful! https://www.pulumi.com/blog/2022-03-10-hierarchical-config/

thank you Matt!

It might not be what you're looking for - let me know if I misunderstood your question and we can dig in more!

I think I get what it's saying, we just use our program ecosystem to provide configuration. I'll have to experiment with this, and read some more. Thank you