- `[2026-07-07]` **Engine invocation footguns cost several wasted serve-bounces this session** — `docker run
  --rm` ate crash logs; duplicated `serve` (vLLM image entrypoint is already `["vllm","serve"]`);
  `--max-lora-rank 48` invalid (choices 1/8/16/32/64… → use 64); parens in `echo` inside `ssh host -c "…"`
  break the remote shell. LESSON: verify engine launch flags (`--help`, GPU-free) + never `--rm` a container
  whose crash logs you need, BEFORE bouncing a production serve.