Make new executable run anywhere from command line

Tag(s):

# Symblink binary(i.e. mpv) to PATH folder(i.e. /usr/local/bin)
sudo ln -s /Applications/mpv.app/Contents/MacOS/mpv /usr/local/bin
 
# Check if your path folder is listed in $PATH.
echo $PATH

Reference: https://apple.stackexchange.com/a/41586