Started in case I ever build a language server, thanks! The interface looks very understandable, and the debug server looks really nice.

Now that I think about it, it might be really cool to add LSP to my CLI framework[0] (I already have tab completion for shells, why not make an editor plugin if it's this easy ..)

0: https://github.com/bbkane/warg

Very nice. Now I want to build a language server. If only I had anything to build it for.