First command-line: On page: https://docs.video2x.org/running/command-line.html
command: video2x --list-gpus fails
should be: video2x -l

In the next section: "Select which GPU to use with the --gpu, -g argument:"
That fails also, when doing video2x --help it says use -d option.

Installation instruction (when you finally have just correctly working which was a challange)
Under user level just --version response with the correct version.
Doing just ubuntu2404 fails with permission problems.
Doing sudo just ubuntu2404 fails again
Going to interactive root session with sudo -i
The PATH must be updated to the correct cargo/bin dir of the user who installed it.
just --version then gives a output.
doing (with the sudo session)
just ubuntu2404 is working.

First of all I'm no linux expert but maybe the docs needs a bit of attention for common installation errors. I couldn't get the container version to run but maybe that was caused with the --gpu flag as well (I got nvidia-docker perfectly working for the other containers which i have and that wasn't the problem)