Although I'm not a Microsoft fan, their docs for F# are worlds ahead of anything I've seen for OCaml (I know a few OCaml folks are working to fix this).

I've considered trying it for Advent of Code this year.

Please give it a try! And perhaps it catches your eye enough - it could use contributors too.

(also: generally speaking the "core" of .NET is quite unlike most other products Microsoft puts out, so chances are you will be pleasantly surprised)

It's definitely worth it to try