I really like TOML as a compromise between "looks pretty" and "parses well". That being said, I find it funny that the author is crying afoul, saying that YAML

I really like TOML as a compromise between "looks pretty" and "parses well". That being said, I find it funny that the author is crying afoul, saying that YAML isn't as well suited to be templated as JSON is, when XML had schemas sorted out ages ago. People ran away from XML, saying it was this verbose, ugly, bandwidth hungry (back when we were sending XML over AJAX) behemoth (which it totally is)... but I think when your usecase is complicated enough to worry about templating, you should take a hard look at XML and ask whether it might suit your better.