I'm not sure I'd agree its solved already, yes we have some languages (Dhall or Cue probably lead the pack) but I hugely prefer Pcl's syntax and approach. It's

I'm not sure I'd agree its solved already, yes we have some languages (Dhall or Cue probably lead the pack) but I hugely prefer Pcl's syntax and approach. It's like saying that C solved systems languages, so there's no reason to have Go or Rust