The @Reportinator bot labels nostr content based on moderation filters. I could see a similar bot adding language detection lables. It’d be better if it were included in the original message at publish time but a labeling bot would work.  

 Nice - this would be an excellent task for a bot. 

@JeffG have you considered adding language labels version of ontolo? 

 Yeah. I had thought about it. I think there are probably pretty good language detection algos out there that could do auto labeling though. Anyone into #ai or #ml know what the state of the art is in that area?