{
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      "properties": {
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        "ver": "0.3.39",
        "Node name for S&R": "PreviewAny"
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      "type": "NunchakuWheelInstaller",
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      "properties": {
        "cnr_id": "ComfyUI-nunchaku",
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        "Node name for S&R": "NunchakuWheelInstaller"
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      "widgets_values": [
        "This node installs the appropriate Nunchaku wheels from [**GitHub Releases**](https://github.com/nunchaku-tech/nunchaku/releases), [**Hugging Face**](https://huggingface.co/nunchaku-tech/nunchaku), or [**ModelScope**](https://modelscope.cn/models/nunchaku-tech/nunchaku).\n\n**How to Use:**\n1.  **First Use:** Set the `mode` to **`update node`** and run the workflow. This will download the list of available versions.\n2.  **Refresh UI:** Press the **'r' key** on your keyboard to refresh the web UI. The version dropdowns will now be populated.\n3.  **Install:** Select your desired version, set the `mode` back to **`install`**, and run the workflow again.\n\nYou **must restart ComfyUI completely** after a successful installation.\n\n- **Troubleshooting:** If the update fails, you can manually download the version list from [here](https://nunchaku.tech/cdn/nunchaku_versions.json) and place the file named `nunchaku_versions.json` in the `custom_nodes/ComfyUI-nunchaku` directory.\n- **Note:** If `dev_version` is available and selected, it takes priority over the official `version`."
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