Simple way to install ComfyUI on Debian/Ubuntu systems

First check your python version:

$ python3 --version
Python 3.11.2

In this case you need to install this (use sudo on Ubuntu)

apt install python3.11-venv

You always need git

apt install git

After you installed the global depends, you can use the rest of the scripts as user.

sh clone-to-home-ai-comfyui.sh

Is to clone ComfyUI and some often needed addons to your home (you can change the TARGET of course)

By default you can go to your installation this way:

cd ~/AI/ComfyUI

If you have got a NVIDIA graphics card with (latest) binary driver installed, use the start-gpu.sh script (cpu is just for reference).
You can mod the script to use lowvram if you expericence too many crashes with your workflows.

There is start-gpu-amd.sh script too for AMD GPUs but due to missing GPU I can not test it.

Listen mode is enabled by default, so every system in your network can use it, disable to keep it on localhost only).

chmod +x start-gpu.sh
./start-gpu.sh

If you get stuck like this (or if you want to recreate the venv):

./start-Xpu.sh: 1: .: cannot open venv-linux/bin/activate: No such file

do in the ComfyUi directory

rm -fr venv-linux

First you are asked for a username and password to protect your gui from unauthorized usage, if you forget your password delete the login folder.

The first checkpoint to run the default workflow goes to

open ~/AI/ComfyUI/models/checkpoints

To download the first checkpoint you can use this command:

wget -NP ~/AI/ComfyUI/models/checkpoints https://huggingface.co/Comfy-Org/stable-diffusion-v1-5-archive/resolve/main/v1-5-pruned-emaonly-fp16.safetensors

To reload the model directory press "r".

For other workflows and models use your favorite search engine.

If you install something via the ComfyUI-Manager that requires a restart please stop the script and run it again, otherwise it might now work well if restarted via GUI.