I love C#, but have actually found LLMs to be quite bad a producing idiomatic code because the language is changing so fast and often they don't even know about the latest language(/blazor) features. I constantly have to undo my initial prompt and rewrite it to tell them that we don't use Startup.cs any more, only Program.cs, and Program.cs is a flat file and not a class.

I think that can be solved with an `instructions.md` and explicitly stating the language version/features to use.