Nodes: that we currently provide the package only for x86-64 linux, such as Ubuntu or Debian, and Python 3.8, 3.9, and 3.10.
https://github.com/chaojie/ComfyUI-Motion-Vector-Extractor
git clone https://github.com/chaojie/ComfyUI-Motion-Vector-Extractor
comfy node install ComfyUI-Motion-Vector-Extractor