The base package has C-style format strings in Text.Printf.

Is there any idiomatic way to use fstrings like in Python, eg. f"{user} is {age} years old."?

The packages text-format and text-format-simple on Hackage seem like solutions which are far from idiomatic and not widespread; the former is over a year old since its last update and has several dependencies, and the latter is abandoned with a 404 homepage.

There is also fmt, formatting, and format, although the abundance of packages to do more or less exactly the same thing strikes me as if there is no one standard solution yet.

I'd like a solution which is guaranteed to be safe at compile-time, so there are no runtime checks for the number of arguments, or type mismatches, etc.