Sorry, I did not understand your message in whole.
, we have Hebrew, Arabic and Persian translations of miniBB. May be they need to be adjusted to the latest release with some sentences, but overall, they are present already.
I guess, setting miniBB in UTF-8 mode
will bring you to the possibility to run it in any language. There may be applied some adjustments to templates, that's all... I know quite big forums of our constant customer, which are set up in Persian and run smoothly for many years with no major problems.
So this all is already possible with miniBB and doesn't require specific support or specific adjustments to scripts.