Changing forum locale via URL param

Hi,
We’re trying to implement a flag in the header that would allow users from particular country to easily change the interface. I’m wondering if it’s possible to change the forum locale via a URL query parameter e.g. ?locale=ja-JP or similar.

I have seen the “set locale from accept language header” option, but this could behave unexpectedly for our established users, so I would rather have something obvious and visual to help non-english speakers.

thanks
Dorian

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