You start Chrome from the command line with that parameter. So, if `path_to_chrome` starts chrome from the command line, you would use something like `path_to_

You start Chrome from the command line with that parameter. So, if `path_to_chrome` starts chrome from the command line, you would use something like `path_to_chrome --app=https://trello.com` https://trello.com`. Without knowing your operating system, I can't be much more exact than that. I hope that points you in the right direction!