After cloning ComfyUI and setting up a virtual environment for it, do the following: (1) cd /path/to/ComfyUI/custom_nodes/ (2) git clone https://github.com/wasilone11/comfyui-sync-lipsync-node.git (3) pip install -r requirements.txt (4) Go back to the /path/to/ComfyUI/ and run python main.py (5) You will get a link to go to the comfyUI GUI (6) Once in ComfyUI, on the left size bar, go to nodes and search Sync. Open the node, put the values, and run!