One-command ComfyUI on Cloud GPUs: A Practical, Repeatable Setup

What we're building

A repeatable way to boot a cloud GPU (RunPod or Vast.ai), paste a single command, grab the exact ComfyUI version you want, auto-install your favorite custom nodes, and download models from Hugging Face/Civitai into the correct folders. No more “did I put that LoRA in the right place?” or “why is this template six months behind?”.

We’ll use a free script generator to produce the one-liner and show you how to tweak, debug, and extend it for your workflow.

It outputs a one-line shell command that:

• Installs or updates ComfyUI to a specific version




• Downloads your selected models into the correct ComfyUI subfolders




• Installs custom nodes you choose from the ComfyUI registry




• Adapts paths to your provider (RunPod/Vast.ai) or your local OS




• Supports tokens for gated downloads

2) Generate your script

• Visit

  
  
  

  Go grab a coffee. When it finishes, ComfyUI will be set up with your exact configuration.

  
  
  

  
  
  
  4) Launch ComfyUI
  

  
  
  

  Start ComfyUI from your provider’s UI (or the app menu). If new nodes don’t show up in the menu, do a quick restart of the app.

  
  
  
  
  
  

  
  
  
  Verify and debug like a developer
  

  
  
  

  I like to sanity-check a fresh environment with a few quick commands.

  
  
  

  
  
  
  Check the ComfyUI version you actually deployed
  

  
  
  
  
  
  
  

  CODE Kopieren

  COMFYUI_ROOT="${COMFYUI_ROOT:-/workspace/ComfyUI}"  # adjust per provider if needed
  
  git -C "$COMFYUI_ROOT" rev-parse --short HEAD
  
  

  
  
  
  
  
  
  
  

  
  
  
  Confirm models landed in the right folders
  

  
  
  
  
  
  
  

  CODE Kopieren

  ls -1 "$COMFYUI_ROOT/models/checkpoints" | head
  
  ls -1 "$COMFYUI_ROOT/models/loras" | head
  
  ls -1 "$COMFYUI_ROOT/models/vae" | head
  
  

  
  
  
  
  
  
  
  

  
  
  
  See which custom nodes got installed
  

  
  
  
  
  
  
  

  CODE Kopieren

  ls -1 "$COMFYUI_ROOT/custom_nodes" | sort | head -n 20
  
  

  
  
  
  
  
  
  
  

  
  

  🧪 Tip: If a node has Python deps, open its README. Some custom nodes require an extra pip install or a build tool. The generator handles common cases, but niche nodes can have surprises.

  
  

  
  
  
  
  
  

  
  
  
  Provider-specific notes
  

  
  
  
  
  
  • 
    

    Vast.ai common ComfyUI path:

    
    
    
    
    
    • /workspace/ComfyUI
    
    
    
    
    
    
  
  
  
  • 
    
    

    RunPod common ComfyUI path:

    
    
    
    
    
    • /workspace/runpod-slim/ComfyUI
    
    
    
    
    
    
  
  
  
  
  
  

  If you’re on a non-template image or your provider changed paths, set COMFYUI_ROOT manually and use the “Full Script” editor to update paths before running.

  
  
  

  
  

  ⚠️ Warning: Custom nodes appear after ComfyUI restarts. If you installed nodes while the UI was running, restart the service/app.

  
  

  
  
  
  
  
  

  
  
  
  Full script mode: for tinkerers and control freaks
  

  
  
  

  Click “Full Script” in the generator to see and edit everything it plans to run. This is great when you want to:

  
  
  
  
  

  • Pin exact commits for ComfyUI or nodes

  
  

  • Add extra pip packages

  
  

  • Change model destination directories

  
  

  • Integrate with a persistent volume

  
  

  • Insert health checks or post-install tests

  
  
  
  
  



• Workflow:

1. Launch GPU instance (RunPod/Vast.ai) and open a terminal

2. In the generator, pick provider + ComfyUI version

3. Add models (HF/Civitai) and custom nodes

4. Copy the one-liner, set tokens if needed, paste into terminal

5. Launch ComfyUI; restart once to load new nodes

• 
  

  Helpful env vars:
  
  

  
  
  CODE Kopieren

  export HF_TOKEN=hf_xxx
  
  export CIVITAI_TOKEN=xxx
  
  export COMFYUI_ROOT=/workspace/ComfyUI  # adjust if your layout differs
  
  

  
  
  


• 
  

  Verify after install:
  
  

  
  
  CODE Kopieren

  git -C "$COMFYUI_ROOT" rev-parse --short HEAD
  
  ls "$COMFYUI_ROOT/models/checkpoints" | head
  
  ls "$COMFYUI_ROOT/custom_nodes" | head
  
  

  
  
  

If you’ve got feature ideas or run into edge cases, the tool’s maintained and open to feedback: [email protected]

Happy building!