@nprofile1q... local LLM are a myth. The L in LLM stand for Large. As in fucking humongoulsy gigantic.
LLM is an emergent behavior of the spicy auto-complete having so much data, it can complete a question with an answer, a message with a reply. I'm not sure a single human can produce enough data in a lifetime to cause that emergent behavior. It require pillaging a big part of the internet before working.
Then people can train it to speak like them relatively easily