Excellent ideas, especially having a parser keep order of parsed data.

I wonder if EDN reader/parser for different languages could be written once, then compiled through wasm to c (https://news.ycombinator.com/item?id=38602750) and linked in each language as c library.

Definitely would like to see EDN or slightly improved version as a modern and usable alternative to json/yaml (regardless of https://xkcd.com/927/).