It currently has done experiments in the backend (link). Sadly, none of this is ready for production yet. Good thing is that we have purescript for the backend, who is indeed very similar to Elm and Haskell! You should give it a look!
[RANT] Elm is pissing me off a bit now
1 project | reddit.com/r/elm | 19 Jun 2022
PureScript 0.15 Released
1 project | reddit.com/r/haskell | 29 Apr 2022
resources for purescript
1 project | reddit.com/r/learnprogramming | 15 Mar 2022
What are the advantages to learning Haskell over Typescript, or vice versa? For instance, can you do equational reasoning in Typescript, like you can in Haskell?
1 project | reddit.com/r/functionalprogramming | 8 Nov 2021
Could not match constrained type inside record field
1 project | reddit.com/r/purescript | 24 Oct 2021