When you say, "if 100 instances all requested translations of the same post...", are you implying that your Libretranslate server can be used by other PieFed instances?

Or does each instance that wants to provide a translation service need to spin up their own Libretranslate server? And if each must self-host it, must it be Libretranslate?

that is great. I feared that it may cost way too much and libretranslate folks might not like the cost