[Silphendio]

JSON??

I don't want to programm anything without comments.

I guess you can easily convert from use yaml or json5, but all the examples are still in json.

[ruuda]

Or if you write it by hand at all, use RCL, then you can also abstract away the repetitive parts: https://github.com/ruuda/rcl/blob/master/examples/vega.rcl

[loa_observer]

JSONC seems solved your issue

[Hasnep]

I think JSON is just used as an intermediate representation which is normally generated by a library in a more general purpose language.