NO is not even the worst of it. `on`, like in github actions, is interpreted as True by PyYaml by default. You have to either quote it, "on", or set certain configs I haven't bothered with just yet.

I fully agree YAML is just...not good as a transport/interchange serde.

Personally, I actually really like HCL as a human-friendly config language, but it's got challenges in writing it, and thus support in most languages, if even present, is read-only.

Will look into strictyaml!