Also, is there a Json Schema for the

yaml

definitions? If there isn't I have no problem in contributing with the creation of one one, but I would need to see some form of documentation defining all the values and shapes it can take.

that sounds like a great idea. There is already a documentation, I'm not sure if this is enough though to create a schema for it https://docs.spryker.com/docs/scos/dev/the-docker-sdk/202204.0/deploy-file/deploy-file-reference-1.0.html

I've actually stumbled upon the

validator.yml

file. I think building a json schema based validator could be a better idea. I'll work on a PR 🙂