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>

.env.example

@@ -0,0 +1,16 @@
+# SparkyUI - ComfyUI for DGX Spark (Blackwell GB10)
+# Copy this to .env and customize paths as needed
+
+# Base path where your existing ComfyUI installation lives (for models)
+COMFYUI_HOST_PATH=/path/to/your/ComfyUI
+
+# Base path for SparkyUI data (custom_nodes, outputs, inputs, etc.)
+SPARKYUI_DATA_PATH=/path/to/SparkyUI
+
+# ComfyUI settings
+COMFYUI_PORT=8188
+COMFYUI_FLAGS=--listen 0.0.0.0 --port 8188 --gpu-only
+
+# Build refs (pin to specific commits/tags for reproducibility)
+COMFYUI_REF=master
+SAGEATTN_REF=main