Is the default encoding when handling files UTF8 OR UTF8-BOM? Is both supported?
Another question: in the readme you have this example
`var joined = U8String.Join(',', boolean.Runes); // "T,r,u,e"`
Why is " T" of true in uppercase?
There is way more heavy lifting that the library does on the "data goes in" side of things because "data goes out" story in .NET is already in a good shape with everything accepting ReadOnlySpan<byte> and ReadOnlyMemory<byte> - zero-allocation interpolated UTF-8 output into streams, sockets, etc. is achieved through extension methods and should you want to write UTF-8 BOM, you can simply do so beforehand working with the corresponding API directly.
However, if you have a particular use case in mind that you're interested in or have trouble with - do let me know as I'd love to have more user feedback!
[0] https://github.com/U8String/U8String/blob/main/Sources/U8Str...
[1] https://github.com/U8String/U8String/blob/main/Sources/U8Str...