I used Homebrew Cask to install ngrok. The installation went fine. I'm trying to edit ngrok's config.yml file. I can't find it on my mac.
It appears that ngrok lives here:
/usr/local/Caskroom/ngrok/2.1.3,4VmDzA7iaHb
and there is a sub-directory in the above directory, but I can't open that directory. Any ideas on where I can find ngrok's config.yml file greatly appreciated.