The author updated their MINISFORUM MS‑S1 MAX P495 (192 GB) weekend test after comments suggested using vLLM/SGLang and claimed HIP prefill beats Vulkan. Desk research showed vLLM/SGLang are impractical on this machine because they require safetensors and would need roughly 1.3–1.7 TB of bf16 model downloads. These findings are presented as leads, not measured results.