Through the efforts of @dandroid@dandroid.app, the lemmy-safety tool can now run via docker, which should help you run it without having to mess with python on your end.
For those who don’t remember, lemmy-safety is a script you can read to clean up your pict-rs images from potential CSAM.
Would it be too much for you to ask to test that out and update the documentation? I don’t have docker, and installing it would mess up my podman-docker setup, which would impact some things I have running. podman-docker simulates docker with podman so I can use docker-compose with podman.