EDN has some really good ideas in it. Here's the main spec: https://github.com/edn-format/edn https://github.com/edn-format/edn The Learn X in Y Minutes: https

EDN has some really good ideas in it. Here's the main spec: https://github.com/edn-format/edn https://github.com/edn-format/edn The Learn X in Y Minutes: https://learnxinyminutes.com/docs/edn/ https://learnxinyminutes.com/docs/edn/ A related talk by Rich Hickey that I think you'd find interesting: https://www.youtube.com/watch?v=ROor6_NGIWU https://www.youtube.com/watch?v=ROor6_NGIWU For a schema, I'd start with what CUE has done. The idea of types that constrain down as a lattice + a separate default path really resonates with me. https://cuelang.org/ https://cuelang.org/