I'm starting to learn about making games on the web and am using this agario clone on GitHub to help.
I've succeeded in setting up a version on Heroku using the instructions from here. I've never used Heroku before, so I'm a little lost on a few more things. The link from the instructions allowed the files to be directly transferred from GitHub. However, I can't seem to view them at all from Heroku - I can only run the client with 'Open app' (which works).
What exactly happened when I deployed the app? Did Heroku immediately start running the server code and will it continue to indefinitely do so even if no clients are connected?