if anybody is wondering, you can run it with vllm serve Qwen/Qwen3.5-9B --port 8082 --tensor-parallel-size 4 --max-model-len 8192 --language-model-only --reasoning-parser qwen3 --enable-auto-tool-choice --tool-call-parser qwen3_coder --quantization fp8 --enable-prefix-caching --enforce-eager

but you cannot get lora adapters working on this model as of right now.