In ripgrep itself you can apparently only look in files of encodings other than UTF16LE with BOM by manually specifying `--encoding UTF16BE` etc.

I could maybe add encoding detection myself, but I'm kind of discouraged since not even the unix `file` tool can detect those files as text, and a normal editor opens at least a UTF16BE file completely wrong. So I'm not sure if I want to spend my time on trying to write heuristic detection on those, especially since UTF16 itself is broken and shouldn't really exist at all...

I'll look into what encoding_rs has to offer.