I really like the custom system prompt we can add to the OpenAI auto-translate configuration, but I'd love to be able to add a language-specific context in the system prompt for each language. So you could have a common system prompt and then an additional section that is only used when translating into a given language.

Use cases:

Fine tuning tone of voice for a given language

Specifying which form to use (e.g. tu/vous in French)

Specifying preferred translations of certain words across the whole project in that language.