citationstyles.org support the fact that citations come in different langauges and locales (see “Localization” at http://citationstyles.org/styles). These localizations are easily accessible as XML files and are available in their see repo here: https://github.com/citation-style-language/locales
IMHO, any citation tool should support this, especially when it’s part of the standard it support (CSL). I was surprised to learn that this is not the case in Paperpile.
Please add this feature so that users from around the world could enjoy Paperpile as well.
P.S - locale support also means RTL support.