fp16 VAE produces NaNs on many SD1.5/SDXL checkpoints, yielding black
images (often mistaken for NSFW censorship - there is no NSFW filter in
the generator). Switch COMFYUI_FLAGS from --fp16-vae to --fp32-vae in
.env.example and document the fix in the README. Verified end-to-end:
a test generation now produces a real image (mean ~86) instead of black.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Downloads previously landed in models/ owned by root because the
container ran as root. Add `user: "${PUID:-1000}:${PGID:-1000}"` to the
model-manager service and PUID/PGID to .env.example so downloaded models
are owned by the host user. Defaults to 1000:1000.
Note: existing root-owned files under models/ and sparkyui-data/ must be
chowned once (e.g. via a one-off root container) when upgrading.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
New FastAPI container (port 8189) to download and manage models:
- Installed Models, Add/Download (CivitAI/HuggingFace/direct URL), Settings views
- Persistent SQLite storage for API keys and download history (./sparkyui-data)
- Downloads land in ./models, auto-sorted into ComfyUI's standard subfolders
- Default COMFYUI_HOST_PATH and SPARKYUI_DATA_PATH to the project root
- Wire docker-compose service, env defaults, gitignore, README docs
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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>
TBNilles
Evan Carmen