Most people who ship features on top of LLMs have never seen the inside of one. I
was in that group. I could call an API, tune a prompt, quantize a GGUF file, and
still not tell you what RMSNorm does or why RoPE exists. The model was a black box
with a temperature knob.
The tutorials did not help. They either hand you a 40-line PyTorch script that hides






