> How much work would it take in term of code rewriting? Probably a lot. Most of the operations on basic types like strings rely on C# methods rather than bein

> How much work would it take in term of code rewriting? Probably a lot. Most of the operations on basic types like strings rely on C# methods rather than being implemented in the corresponding module like in OCaml (e.g. `String.split_on_char ' ' "a b c"` in OCaml vs `"a b c".Split(' ')` in F#). Type annotations on function parameters are required much more often because the compiler can't infer object types from a method call. Obviously you'll have very different libraries for doing the same things, and you'll be interacting with C# libraries a lot. Some language features like objects or binding operators exist in both languages but have very different syntax and differing semantics, and others like local opens and functors just don't exist in F#. F# also defaults to a "light" indentation-based syntax and I think the old OCaml-like syntax is either unsupported or hidden behind a compiler directive, and you'll probably want to rename identifiers from snake_case to camelCase. > how good is the language support experience in vscode? There's two competing LSP implementations for F#. Ionide works, but it's slow and it crashes and reports old errors for code you've just rewritten very often in my experience. fsharp-language-server seems to be a bit better in some aspects, but I haven't ever gotten it to work in VS Code.