Unsloth — fast, low-VRAM fine-tuning on one GPU

Unsloth is a fine-tuning backend: hand-written Triton kernels + a patched LoRA/QLoRA path that make transformers + trl training run faster and fit a much bigger model on a single consumer GPU. You reach for it when the decision to fine-tune is already made and the problem is now "make this run on the one GPU I have." This skill owns the backend + the export mechanics. It does not decide whether fine-tuning is even the right move (finetuning), and it does not run the model you export (ollama / vllm).

Read this first (the two things that bite everyone)