Both lanes were fully wired (workflow + custom node + OWUI lane) but their
weights were never fetched by setup-ai-studio.sh -> download_studio_models.sh,
so selecting either returned a cryptic "ComfyUI generation error" — the log
shows FileNotFoundError: <model> is not installed (download_if_missing: false).
- HiDream: download_hidream_o1.sh existed and is correct, but the roster never
invoked it. Wire it in.
- Chroma: had no downloader at all. Its UNET (Chroma1-HD-fp8mixed), the shared
t5xxl_fp16 encoder, and the flux ae VAE relied on the legacy (now-unwired)
download_models.sh already being on disk. Add download_chroma.sh (mirrors
download_zimage.sh's split_files staging; ungated sources) and wire it in.
- studio-models.tsv: add the chroma + hidream rows so c3's missing-model check,
gpu-mode preflight, and the download modal know about them.
Repo file paths verified against the live HF API. The downloads themselves are
not run-verified here (no 120 GB pull); the script mirrors the proven sibling
downloaders. test-studio-derig.sh green.
Claude-Session: https://claude.ai/code/session_01EfF565T9eSLaqGzidyJ1Pm
Co-authored-by: noonghunna <10742901+noonghunna@users.noreply.github.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
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