alt Hacker NewsWhilst YAML is an option, if the choice is between having the unnecessary extra features of JSON5 or YAML, JSON5 seems like the clear winner.
Allowing multiple types of quotes may be an unnecessary feature but it is a clear lesser evil compared to the mountain of footguns that YAML brings with it.
How does defining a YAML resource strictly in terms of well-formed JSON + octothorpe comments introduce "the mountain of footguns that YAML brings with it"?