Initial commit: SparkyUI - ComfyUI for DGX Spark (Blackwell GB10)

Docker-based ComfyUI setup for NVIDIA DGX Spark ARM64 + sm_121:
- CUDA 13.0.2 base (required for compute_121 support)
- PyTorch 2.9.1+cu130 ARM64 wheels
- SageAttention compiled with TORCH_CUDA_ARCH_LIST="12.1"
- Triton/torch.compile disabled (no sm_121 support yet)
- ComfyUI-Manager auto-installed at runtime
- Configurable model/data paths via .env

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docker-compose.yml

@@ -0,0 +1,53 @@
+services:
+  comfyui:
+    build:
+      context: .
+      dockerfile: Dockerfile
+      args:
+        # Pin ComfyUI to a known-good commit/tag if desired
+        COMFYUI_REF: "${COMFYUI_REF:-master}"
+        # SageAttention ref (e.g., "main", "v2.2.0", or specific commit)
+        SAGEATTN_REF: "${SAGEATTN_REF:-main}"
+
+    image: sparkyui:cu130
+    container_name: comfyui
+
+    # GPU enablement
+    deploy:
+      resources:
+        reservations:
+          devices:
+            - driver: nvidia
+              count: all
+              capabilities: [gpu]
+
+    # LAN exposure
+    ports:
+      - "${COMFYUI_PORT:-8188}:8188"
+
+    environment:
+      COMFYUI_PORT: "${COMFYUI_PORT:-8188}"
+      COMFYUI_FLAGS: "${COMFYUI_FLAGS:---listen 0.0.0.0 --port 8188 --gpu-only}"
+      NVIDIA_VISIBLE_DEVICES: "all"
+      NVIDIA_DRIVER_CAPABILITIES: "compute,utility"
+      # Disable torch.compile/inductor - Triton doesn't support Blackwell sm_121a yet
+      TORCH_COMPILE_DISABLE: "1"
+      TORCHDYNAMO_DISABLE: "1"
+
+    volumes:
+      # Models from existing ComfyUI install (read-only)
+      - ${COMFYUI_HOST_PATH}/models:/opt/ComfyUI/models:ro
+
+      # Custom nodes - comment out to use container-only (fresh) custom_nodes
+      # If mounted, ComfyUI-Manager installs persist across container restarts
+      - ${SPARKYUI_DATA_PATH}/custom_nodes:/opt/ComfyUI/custom_nodes
+
+      # Outputs/inputs/workflows - persistent across restarts
+      - ${SPARKYUI_DATA_PATH}/output:/opt/ComfyUI/output
+      - ${SPARKYUI_DATA_PATH}/input:/opt/ComfyUI/input
+      - ${SPARKYUI_DATA_PATH}/workflows:/opt/ComfyUI/workflows
+
+      # Wheel cache (optional - for prebuilt wheels)
+      - ${SPARKYUI_DATA_PATH}/wheels:/opt/wheels
+
+    restart: unless-stopped