Error: "zsh: command not found: pf" on MacOS about portforwarder-rs HOT 2 OPEN

Maybe it's because I don't know how to do either of these things? Can you help?

Rust is installed now. Great!

To get started you need Cargo's bin directory ($HOME/.cargo/bin) in your PATH
environment variable. Next time you log in this will be done
automatically.

To configure your current shell, run:
source $HOME/.cargo/env

When I try I get this error:

manny@Mannys-MacBook-Pro ~ % $HOME/.cargo/en
zsh: no such file or directory: /Users/manny/.cargo/en

from portforwarder-rs.

Hi. The error means that zsh couldn't find pf binary in folders listed in $PATH.

You can see which folders zsh looks into via echo $PATH. Assuming you built portforwarder with cargo build, you can just move target/release/pf executable file to any of $PATH-listed folders.

Or, a better way would be to create a folder (e.g. .cargo, or .local/bin, or whatever name you want) and add it to $PATH by changing .zshrc. See https://coolestguidesontheplanet.com/how-to-add-to-the-shell-path-in-macos-using-terminal/

EDIT: the guide I linked to, on coolestguidesontheplanet.com, has an error - it says .zsh, while the correct file is named .zshrc

EDIT 2: The folder I mentioned in the readme text, .cargo, comes from the fact that cargo install portforwarder-rs by default installs the program to ~/.cargo/bin/pf on Linux.

from portforwarder-rs.