There is currently no way to (easily) convert from a BitArray that contains non-UTF codepoints to a String.
This is usable when, for example, you need to handle filepaths and you're not concerned with the exact naming but want a best-effort conversion.

In Rust there's OsStr and Path-derivations for this. One first step could be to implement something like Rust's to_string_lossy

fn to_lossy_string(bytes: BitArray) -> String {
    todo
}