There's also HJSON, which stands for Human JSON.
It has implementations in JavaScript, C#, C++, Go, Java, Lua, PHP, Python, Rust.
Re:JSON5 – JSON for Humans
by joshuaturner on Monday December 09, 2024 @12:49AM
(#42363357)
Who has the xkcd comic about standards handy?
JWCC is also what Tailscale call HuJSON, as in "JSON for Humans", which as amusingly also what json5 claims to be.
https://github.com/tailscale/hujson