The proliferation of yaml is rather unfortunate.
I mean YAML is just another data serialization format and so can be trivially converted anyways, but I thought that YAML had completely different formatting rules than JSON.
> YAML can therefore be viewed as a natural superset of JSON, offering improved human readability and a more complete information model. This is also the case in practice; every JSON file is also a valid YAML file. This makes it easy to migrate from JSON to YAML if/when the additional features are required.
I think that's why I absolutely love YAML: I was able to start using it by writing JSON, then replacing parts of my documents with their "native" equivalents as I got comfortable with it.