For "citation needed", read "please link me to a blog post showing how, don't just tell me to Google for one".

The internet is full of blog posts about this. That doesn't mean they're actually good - I'd love to be pointed at one that has proven itself useful for someone (and definitely isn't just LLM blog-spam).

I don't care if it's trivial to fine-tune and get crap results - I care about fine-tuning where the result was worth the effort.

For the record, my favourite guide to fine-tuning is the section of this Jeremy Howard video that shows how to train a text-to-SQL model: https://www.youtube.com/watch?v=jkrNMKz9pWU&t=4850s