To use factor, you may need to add the $APPDIR/factor directory
to your PATH environment variable, e.g. (for Bash shell):
export PATH=$APPDIR/factor:"$PATH"
factor is built for Intel macOS and requires Rosetta 2 on Apple Silicon.
Install Rosetta 2 with softwareupdate --install-rosetta --agree-to-license.
Rosetta 2 is difficult to remove once installed.
