i guess huggingface put themselves in charge of machine learning technology trickling down to the masses in a controlled way they released a lengthy tutorial that explains the parts, on using a new patch to their libraries to make custom large models on low end hardware. it combines the chatgpt rlhf approach with the adapter peft approach and appears to be roughly what is presently the normative cutting edge
https://www.reddit.com/r/MachineLearning/comments/11p3a0j/d_finetuning_20b_llms_with_rlhf_on_a_24gb/ https://huggingface.co/blog/trl-peft